80 utilisations cachées de choses que la plupart des gens ne connaissent pas

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Transcript

00:00:00You go to the supermarket to buy some small items.

00:00:04The cash register goes much faster than when you have to wait for people to unload their huge cart.

00:00:09But this noisy voice that comes from the machine, which keeps ordering, cuts you off.

00:00:14I have good news for you, you can turn it off.

00:00:17Take a closer look at the screen.

00:00:19You will probably see a volume button at the bottom.

00:00:22Use your finger to cut this painful voice too weird for good.

00:00:26All machines do not have this hidden option, but it's really worth checking.

00:00:31Normally, the sunflower oil bottles have a weird plug inside.

00:00:36Most people remove the top part and throw it away.

00:00:40But there is actually a better way to use it.

00:00:43Turn the detached part inside and put it in the bottle cap.

00:00:47This will make an excellent distributor and you will never pour too much oil into your salad.

00:00:53Do you plan a picnic with your friends in nature?

00:00:56Forget your classic meal basket, we were all wrong.

00:00:59In fact, it's not a basket, but a bucket.

00:01:02Yes, it is much better to put your picnic stuff in several buckets.

00:01:06This will evenly distribute the weight between all the guests.

00:01:10When you have found a nice place for your picnic and you have taken out all your stuff,

00:01:16turn the buckets and use them as stools.

00:01:19When the meal is over, place the buckets in each other to gain space on the way back.

00:01:26Your toasts are starting to burn, but you don't have a kitchen tweezers in your hand?

00:01:30Take two identical forks, put them together and tie them tightly with an elastic.

00:01:35And there you go, your tweezers are ready.

00:01:38Have you ever wondered what this double bottom under the lid of Nutella was for?

00:01:43There is only one way to find out.

00:01:45Here is a brand new pot of Nutella.

00:01:48Let's remove the white circle from the carton, then peel off the aluminum foil.

00:01:53Surprise! There should be a small knife to cut the golden aluminum foil.

00:01:58Now you know how to have access to your favorite cute sin without hurting your hands.

00:02:03Do not throw the glass pot away once you have finished eating Nutella.

00:02:07It can turn into a candle holder or a lantern.

00:02:10Wash it, paint it on your back.

00:02:13Add decorations or letters.

00:02:15Glue a beautiful string around the edge of the pot.

00:02:18Place a candle or a bright candle inside the glass.

00:02:22No one will ever guess it was a Nutella jar.

00:02:25It will be our secret.

00:02:27Have you ever wondered why Ritz biscuits have teeth on the edge?

00:02:31You can use them as a cheese knife and soft products like cucumbers, ham, etc.

00:02:38All you have to do is turn the cracker as if it were a tiny pizza knife and press.

00:02:44Now all the ingredients fit perfectly on your cracker.

00:02:47Enjoy your snack!

00:02:49You also have one of those old baking trays that you never use but still hesitate to throw away.

00:02:54Good news! You can recycle it and make a beautiful frame for a painting or a photo.

00:02:59There are two ways to proceed.

00:03:01Grease the surface of your tray and fix the image at the bottom.

00:03:05In this case, the frame will stick forward.

00:03:08You can also turn the tray upside down and the edges will hide at the back.

00:03:12Hang this achievement on a wall or place it on a shelf.

00:03:16And do not hesitate to use metal paint to give your frame a suitable color.

00:03:22An old cutting board can make an excellent frame for a mirror.

00:03:26Use double-sided tape to attach a mirror to the surface of your board.

00:03:32Make sure the mirror is well glued.

00:03:35You can now hang it on the wall with the handle of the board

00:03:39or place it on a cupboard and hang it on the wall.

00:03:42Do not forget to wash and dry the cutting board before starting this DIY.

00:03:47You don't want the mirror to smell like fish, do you?

00:03:50Another great power of a cutting board is to keep the wires without knots.

00:03:56Wrap a few light garlands around an old cutting board in wood and put it in your closet.

00:04:02During the next end-of-year parties, they will still be completely untangled.

00:04:06A hair dryer can make an excellent mini vacuum cleaner when you need to do an emergency cleaning.

00:04:12Cut a plastic bottle and dry it.

00:04:15Put a layer of fabric on the fan of your hair dryer.

00:04:18Then place the fan on the bottom of the plastic bottle.

00:04:23Attach the bottle to the hair dryer using a shelf.

00:04:26Turn it on and hop!

00:04:28You are ready to clean up the mess.

00:04:31You can use an old gas cooker grid to hang your interior plants.

00:04:37Attach it to the wall using screws or nails.

00:04:40Now you are ready to hang flower pots, electric garlands and other decorative elements.

00:04:47If the color of your cooker grid does not match your interior,

00:04:51you can always fix it by using bomb paint.

00:04:55Chinese chopsticks and wooden ice cubes can also turn into a beautiful panel that will decorate your interior.

00:05:04Glue the edges together to create a grid.

00:05:07You can also compose your name or any other word you want with the ice cubes.

00:05:12Then wrap the grid with the light garlands and enjoy your decoration.

00:05:18Do not throw away your frozen aluminum foil. It can help you light up the day.

00:05:23Make identical aluminum foil balls and glue them on a glass,

00:05:27a mirror frame or even a book, and your life will immediately become more glamorous.

00:05:33If you need to sharpen your used scissors, take aluminum foil and crush it into a ball.

00:05:39Sharpen the edges of the scissors directly on this aluminum foil ball.

00:05:43To speed up your ironing, place pieces of aluminum foil under your ironing board,

00:05:49then put the coating back on. The aluminum foil will reflect the heat.

00:05:53The iron to be ironed will be warmer and will work much faster.

00:05:58If you have trouble organizing all your jewelry and you lose them from time to time,

00:06:02your favorite articles use a sponge to store them.

00:06:05Just make a few notches and place your little treasures inside these notches.

00:06:11They will hold firmly in the sponge and will not risk falling or mixing.

00:06:16You can also use a sponge to create an organizer for your jewelry.

00:06:21Find a nice box, cut your sponge into pieces of the same size and place them inside the box.

00:06:27Use glue or tape to fix the sponge to the box and enjoy your new jewelry screen.

00:06:34You can easily make chocolate-covered strawberries at home.

00:06:37Take a plastic syringe, fill it with chocolate paste,

00:06:42remove the leaves from the strawberry and insert the syringe into the hole,

00:06:46where the leaf usually comes out.

00:06:49Press the chocolate into the fruit and it's ready.

00:06:52You can use the same technique when you prepare sparkles, apples,

00:06:56or when you want to leave a chocolate note on crepes to surprise your partner in the morning.

00:07:02Wooden trousers straps with metal clips can be useful when it comes to hanging curtains

00:07:07or a background canvas for your photo shoot.

00:07:10If you need to hang curtains, but you don't have any special hooks,

00:07:14fix several trousers straps along the length of the curtains,

00:07:17then hang this structure at one edge.

00:07:20In general, when we chop onions or fresh garlic,

00:07:23our fingers end up feeling bad for a while.

00:07:26This is no longer a fatality.

00:07:28Just rub a little lemon on your hands before touching the food that smells,

00:07:32and they will feel the fresh lemons once you have finished.

00:07:35You can also use a green lemon or a red grapefruit.

00:07:40An old metal tea pot serves as a mini shelf for the little things in your kitchen.

00:07:45Put double-sided tape on the pot and stick it in the upper corner of your closet.

00:07:50You can use shoe bags as a laundry bag or to store underwear,

00:07:54apart from other clothes.

00:07:56When you travel from summer to winter or vice versa,

00:07:59you will have to separate your warm clothes from summer clothes.

00:08:02Shoe bags will help you solve this problem.

00:08:06If you have trouble opening a container or a jar, don't make too much effort.

00:08:10Put the lid under hot water for half a minute,

00:08:13then dry it to be able to hold it well,

00:08:16and you will see that it will open like magic.

00:08:19If you follow a recipe that requires both garlic and onions,

00:08:22add the onions first.

00:08:24When they become almost translucent,

00:08:26this is the ideal time to add your garlic.

00:08:29Garlic cooks faster than onions.

00:08:31Therefore, if you put these two foods in a saucepan at the same time,

00:08:34the garlic will burn and your dish will not be very good.

00:08:38Do you like avocados?

00:08:39Here is how you can easily check if they are ripe or not.

00:08:42Take a look at the tail of the fruit.

00:08:45If it comes off easily, it means that the avocado is good to eat.

00:08:48If it resists, it is better to wait a few more days,

00:08:51because it is not yet ripe.

00:08:55Here is how you can know if an egg is fresh or not.

00:08:58Break it and check the yolk.

00:09:00If you see that it is surrounded by a white circle

00:09:02and that it is well in the middle,

00:09:04your egg is fresh.

00:09:06The egg yolk is also supposed to be voluminous.

00:09:08If it is flat, it is better not to eat the egg.

00:09:11If you see that the white part has no clear outline

00:09:14and that your egg spreads,

00:09:16there is a good chance that it is broken.

00:09:18To evaluate the quality of your eggs,

00:09:20place a raw egg still in its shell in a bowl of water.

00:09:23If the egg stays at the bottom, it is good.

00:09:26If one of its sides is close to the surface of the water,

00:09:28your egg is not fresh,

00:09:30but you can still eat it.

00:09:32But if it floats, it must not be eaten.

00:09:35Do not brush your teeth in the morning and in the evening in the same way.

00:09:39It is important to brush your teeth in the morning,

00:09:41but especially to have a fresh breath.

00:09:43In the evening, you must brush your teeth more carefully.

00:09:46You will prevent the proliferation of bacteria

00:09:48and protect your gums and teeth.

00:09:51Speaking of bad breath,

00:09:53here is a good tip to get rid of it in a blink of an eye.

00:09:56Cucumber slices.

00:09:58If you do not have a toothpaste at hand,

00:10:00you just have to eat a slice of cucumber to solve this problem.

00:10:04When you buy natural peanut butter,

00:10:07keep it upside down.

00:10:09In this way, it will remain very homogeneous.

00:10:12In addition, its oil will go up,

00:10:15which will make your peanut butter easier to mix.

00:10:18When you put something down for a moment,

00:10:21say it out loud.

00:10:23For example, I put my phone on the floor next to my bed.

00:10:26You will thus mobilize several parts of your brain,

00:10:29including those responsible for speech,

00:10:31and you will remember it better.

00:10:33You can do the same thing when, for example,

00:10:36you blow a candle,

00:10:38unplug your dryer, turn off your kitchen,

00:10:40or take your keys, your wallet,

00:10:42and other objects when you leave your house.

00:10:44Then end these little moments of doubt

00:10:46where you wonder if you have not forgotten anything.

00:10:49If you visit a friend

00:10:51and you bring something you do not want to forget on your way out,

00:10:54put it next to the keys of your car.

00:10:56It is impossible to leave without it.

00:10:59If you have trouble making a decision,

00:11:01play head-on.

00:11:03It is not really about leaving the room decided in your place.

00:11:06But while you wait to see the result,

00:11:09your mind will automatically think of the result you really want,

00:11:13but which remains unconscious or unexpressed.

00:11:16You are at the supermarket

00:11:18and you want to know if this or that pumpkin is good or bad.

00:11:21Tap on it.

00:11:23Do you feel like it is empty inside?

00:11:25That's a good sign.

00:11:27As for the outside, it must be hard.

00:11:29We sometimes throw in foods that are still good,

00:11:32like the yogurt that has stratified.

00:11:34You know this layer of liquid on top?

00:11:37It's milk and it contains nutrients.

00:11:39Mix your yogurt to make it homogeneous.

00:11:42You can still eat it.

00:11:44When you buy chicken,

00:11:46check that there is no liquid around.

00:11:48For example, if you take the chicken out of your freezer

00:11:51and you see a lot of ice all around,

00:11:53it is better not to eat it.

00:11:55Do you live in a new apartment or a new house?

00:11:58Start by arranging your bedroom.

00:12:01Buy a bed first.

00:12:03When you are tired of moving and cleaning,

00:12:06you will want a comfortable place to rest.

00:12:09Here is a tip that will help you determine

00:12:12if your coconut oil is frothed.

00:12:14Leave it in the fridge for half an hour.

00:12:17The coconut oil becomes solid at low temperature.

00:12:20The frothed oils disintegrate

00:12:22and take on a separate layer.

00:12:25To know if an onion is moldy,

00:12:27just look at what is under the first coat of polish.

00:12:31You see spots and the polish is discolored.

00:12:34It's mold.

00:12:36Choose another one and peel it well if you only have one.

00:12:40It is possible to determine with the naked eye

00:12:43if a lemon is ripe or not.

00:12:45If its skin is smooth and yellowish, it is ripe.

00:12:48A greenish hue and a pale yellow color

00:12:51indicate that it is not yet ready to be consumed.

00:12:54If you want to fully enjoy your coffee,

00:12:56it is better to buy seeds and mold them yourself

00:12:59or ask the seller to do it in the store where you buy your coffee.

00:13:03This is the best way to make sure

00:13:05that the product does not contain any of the additives

00:13:09If you are looking for a simple way

00:13:11to separate the egg yolks from the egg whites,

00:13:13try this.

00:13:14Take a clean and empty plastic bottle.

00:13:16Break an egg in a bowl,

00:13:18squeeze the bottle over the egg yolk

00:13:20and slowly release.

00:13:22You will create an empty space

00:13:24that will slide the egg yolk into the bottle.

00:13:26And there you go,

00:13:27the egg yolk and the egg white are separated.

00:13:29And it's easy.

00:13:31Imagine that you have lost an earring

00:13:33or another small object in the house.

00:13:35Your vacuum cleaner can help you,

00:13:37but don't forget to use a bath.

00:13:39This way, the object will not get involved

00:13:41with the dust and dirt that is in the bag.

00:13:45You want to take your favorite lotion on a trip,

00:13:47but it takes up too much space?

00:13:49You can use a contact lens case.

00:13:51It is not very cumbersome

00:13:53and it is a perfect solution for short-term trips.

00:13:57A hair straightener is an amazingly effective tool

00:14:00to brush the glue.

00:14:02Especially if you are not a fan of classic brushing.

00:14:05To know if a battery is still working,

00:14:07drop it 15 cm above a table.

00:14:11If it bounces once and falls,

00:14:13it means it is in good condition.

00:14:15If it bounces more,

00:14:17it means it is worn or on the point of being.

00:14:21If your razor does not have a hood,

00:14:23you can use a drawing pin to cover its blade

00:14:26and to protect the rest of your stuff

00:14:28if you pack it with fragile objects or materials.

00:14:32You can easily differentiate your keys

00:14:34with nail polish,

00:14:36especially if they all look the same.

00:14:38You will not have to try them all

00:14:40before you find the right one.

00:14:42When you heat something in the microwave,

00:14:44make a circle in the middle of your dish.

00:14:46This way,

00:14:48your food will warm up more evenly.

00:14:51A straw is a nice tool to cut strawberries,

00:14:53don't you think?

00:14:56A muffin mold is very useful

00:14:58if you want to serve different condiments

00:15:00for your barbecue.

00:15:02It will save you time

00:15:04when you have to do the dishes.

00:15:06A simple sponge and baking soda

00:15:08can remove small spots of grease,

00:15:10fingerprints and marks on the walls

00:15:12or on any other painted surface

00:15:14such as furniture and wooden closures.

00:15:16Just sprinkle a little baking soda

00:15:18on a dry sponge

00:15:20and rub the macular area

00:15:22in a circular motion.

00:15:24Then use a clean and dry cloth

00:15:26to wipe the baking soda

00:15:28to remove any residual dirt.

00:15:30If you are afraid that this technique

00:15:32will damage your painting,

00:15:34try first a little bit of baking soda

00:15:36and see how the surface reacts.

00:15:38If you want to extract as much juice

00:15:40as possible from your lemon,

00:15:42put it in the microwave for 15 seconds.

00:15:44Then run it on a hard surface.

00:15:46And now,

00:15:48all you have to do is use

00:15:50your manual grub press.

00:15:52When you break glass or pottery on the floor,

00:15:54it can be difficult to distinguish

00:15:56and pick up all these tiny fragments,

00:15:58especially if the glass is transparent.

00:16:00Guess what can help you?

00:16:02A slice of bread!

00:16:04After removing all the large pieces,

00:16:06carefully place a thick slice of bread

00:16:08on the floor to pick up these small fragments.

00:16:10It should stay stuck in the bread,

00:16:12but be careful to do it very carefully

00:16:14or to wear protective gloves.

00:16:16And don't prepare a sandwich

00:16:18just after.

00:16:20I say that, I say nothing.

00:16:22If you are a big fan of garlic,

00:16:24here's a tip for you.

00:16:26Cut the garlic in half and rub it in an empty bowl

00:16:28to give it a pleasant flavor.

00:16:30You can then put your pasta,

00:16:32your risotto or your salad

00:16:34and enjoy a good meal.

00:16:36Pringles tubes are made of a mixture

00:16:38of paper, plastic and metal,

00:16:40which makes it a good option

00:16:42to organize your condiments.

00:16:44You can paint the tubes a single color

00:16:46to match the minimalist style of your kitchen

00:16:48and then stick labels on the side.

00:16:50Have you ever had trouble putting on a needle?

00:16:52Here's a good solution.

00:16:54Place your toothbrush on the table

00:16:56and pass your thread through these hairs.

00:16:58Then gently push the needle down.

00:17:00The stiff hairs will help you

00:17:02to pass the thread through the cat

00:17:04of the needle effortlessly.

00:17:06Once your goal is achieved,

00:17:08you just have to finish the job

00:17:10by pulling with your fingers.

00:17:12If the tea has left stains

00:17:14that do not go to the washing

00:17:16on your favorite cup,

00:17:18try to apply a little toothpaste

00:17:20on your sponge.

00:17:22It is preferable to use

00:17:24a slightly abrasive sponge.

00:17:26They are very useful to eliminate

00:17:28the dark traces on the dish.

00:17:30Let's say you recently received

00:17:32a very nice bouquet,

00:17:34but the flowers took this sad look

00:17:36in the blink of an eye.

00:17:38You can extend their life very easily

00:17:40and almost for free.

00:17:42First, fill a vase with fresh water

00:17:44and put a few teaspoons of sugar in it.

00:17:46This will help feed your flowers.

00:17:48Before putting them back in the vase,

00:17:50cut about 1 cm from the stem.

00:17:52Make sure to cut it diagonally,

00:17:54like this.

00:17:56This trick will increase

00:17:58the water absorption surface.

00:18:00Repeat this operation with all the stems,

00:18:02especially those that are rigid.

00:18:04Put the bouquet back in the vase.

00:18:06The flowers should be ready

00:18:08in the next 12 hours.

00:18:10If your feet are cold,

00:18:12put them in a vase.

00:18:14No, wait, I'll get the brushes.

00:18:16Use a hair dryer to warm up

00:18:18your feet.

00:18:20This trick also applies

00:18:22to your outdoor shoes in winter.

00:18:24Speaking of feet,

00:18:26there is a good way to get rid

00:18:28of unpleasant odors.

00:18:30Apply about 10 drops of your favorite essential oil

00:18:32on two cotton balls.

00:18:34Then place these balls in your shoes

00:18:36and let them rest all night.

00:18:38In the morning, remove them

00:18:40and enjoy this new exotic fragrance.

00:18:42You can also mix several of your favorite perfumes

00:18:44to personalize the smell of your shoes even more.

00:18:46If your evacuation day is a little dirty

00:18:48and smelly, there is a great trick

00:18:50to solve this problem.

00:18:52Put two tablespoons of baking soda

00:18:54and pour a little vinegar.

00:18:56All you have to do is relax

00:18:58and enjoy the show.

00:19:00The mixture will foam and help

00:19:02to get rid of the dirt.

00:19:04We all tried to crack a match

00:19:06outside in a windy weather

00:19:08and we all failed, unfortunately.

00:19:10Well, we got it wrong.

00:19:12There is an easy way to prepare a match

00:19:14You just have to carefully cut

00:19:16the four corners just below the head of the match.

00:19:18Then repeat the same technique

00:19:20once again to get this result.

00:19:22These eight small splinters

00:19:24will create a flame

00:19:26more resistant to the wind.

00:19:28If you have a small pantry with little space

00:19:30to hang new clothes,

00:19:32remove a few metal pins

00:19:34from the top of your old cans.

00:19:36They can form perfect suspension loops

00:19:38to fix a second belt.

00:19:40Just place the ring on the hook

00:19:42and that's how you can double

00:19:44or even triple the storage space

00:19:46on a single ring.

00:19:48If you urgently need to make a candle,

00:19:50you can use an element that is

00:19:52frequently found in all refrigerators.

00:19:54Can you guess what it is?

00:19:56Butter, of course.

00:19:58Cut a piece of cooled butter

00:20:00and place it in a dish resistant to heat.

00:20:02Drill a hole in its center

00:20:04with a toothpick or a wooden stick.

00:20:06We now need a wick.

00:20:08You can use string or ordinary cotton thread.

00:20:10Take the corresponding wick

00:20:12and pass it through the hole

00:20:14so that it goes all the way to the bottom of the candle.

00:20:16Gently coat the end of the butter wick

00:20:18and turn on your brand new DIY candle.

00:20:20Use a wire brush

00:20:22to make the folds of your tie disappear.

00:20:24Or let's say you work in a store

00:20:26and you have to count

00:20:28a battery of liquid silver.

00:20:30The wires will help you quickly pass your silver

00:20:32to distribute it in smaller batteries

00:20:34that you can then put in your pockets

00:20:36or in your backpack.

00:20:38Wow!

00:20:40What a strong light closure!

00:20:42Why doesn't it slide like all the others?

00:20:44But don't rush

00:20:46to throw away your coat.

00:20:48So take a soap and gently rub it

00:20:50from top to bottom against the light closure.

00:20:52Repeat the operation on both sides.

00:20:54Can you see the difference?

00:20:56Cut a leg of an old tie

00:20:58and put two long cardboard tubes in it.

00:21:00Then put it under the door

00:21:02of your room with a tube on each side.

00:21:04This way you will be protected

00:21:06from the air currents

00:21:08because the glue will block the gap under the door.

00:21:10You can also use this trick

00:21:12when you need to completely hide a room.

00:21:14Make sure to use very thick black glue.

00:21:16Let's say you're going to a conference

00:21:18in another city

00:21:20and your schedule is very busy.

00:21:22You can prepare your clothes

00:21:24for each day in advance

00:21:26and store them in different compartments

00:21:28of your foldable storage organizer.

00:21:30You can then put it in your suitcase,

00:21:32close it, and you're ready to go.

00:21:34When you arrive at the hotel,

00:21:36you just need to carefully take out

00:21:38this organizer and hang it

00:21:40in the closet in two or three steps.

00:21:42But don't forget to take your shoes with you.

00:21:44Is there a way to stick a nail

00:21:46into a wall without hitting your fingers?

00:21:48The answer is yes.

00:21:50Take a comb and stick the nail

00:21:52between your teeth.

00:21:54This way your delicate fingers

00:21:56will stay apart and won't risk getting hurt.

00:21:58Once you've stuck the nail enough,

00:22:00you can gently remove the comb

00:22:02and finish the job.

00:22:04If you urgently need

00:22:06a metal sponge to wash

00:22:08your pan or pan without your clothes,

00:22:10use a piece of aluminum foil.

00:22:12Rub it to make a ball,

00:22:14apply a little dishwashing liquid,

00:22:16and your new sponge is ready.

00:22:18Now start rubbing

00:22:20and get ready to be surprised.

00:22:22It works very well, doesn't it?

00:22:24By the way, the aluminum foil

00:22:26doesn't need to be new.

00:22:28You can reuse a piece

00:22:30of aluminum foil.

00:22:32The last piece of advice

00:22:34is for perfectionists.

00:22:36If your shower head contains

00:22:38a lot of limestone,

00:22:40the water won't flow down

00:22:42directly.

00:22:44To fix this,

00:22:46fill a plastic bag

00:22:48with white vinegar.

00:22:50Then place the shower head

00:22:52in the bag,

00:22:54attach it with an elastic

00:22:56and let it sit overnight.

00:22:58If for some reason

00:23:00you decide to wake up

00:23:02a sleeping giant panda

00:23:04or to pet it,

00:23:06don't forget it's a bad idea.

00:23:08Even big intrepid geese,

00:23:10like the snow panthers,

00:23:12don't hesitate to disturb

00:23:14the pandas in nature.

00:23:16Those you see in the zoo

00:23:18may not be very active,

00:23:20but they still have a massive jaw

00:23:22that can inflict a powerful bite.

00:23:24Their huge fake thumbs

00:23:26make them look always smiling,

00:23:28but they are actually

00:23:30rather aggressive animals

00:23:32and efficient lone hunters.

00:23:34They like to play cat and mouse

00:23:36with their food,

00:23:38including penguins,

00:23:40fish, squids

00:23:42and even smaller seals.

00:23:44Not so long ago,

00:23:46a leopard seal even dragged

00:23:48a marine biologist under the water.

00:23:50Hey, stop playing with your food!

00:23:52Ants feed on insects,

00:23:54like my uncle Jean-Michel.

00:23:56They are not aggressive

00:23:58and stay away from people.

00:24:00But if humans walk on their tracks,

00:24:02ants can become ferocious

00:24:04and fight.

00:24:06They stand on their hind legs,

00:24:08use their tails to balance

00:24:10and attack with their claws,

00:24:12which are strong enough

00:24:14to injure a jaguar

00:24:16or a Land Rover.

00:24:18Fierce alpacas may seem affectionate,

00:24:20but they still have ways to defend themselves.

00:24:22They can bite with their teeth

00:24:24which are at the back of their mouths.

00:24:26They also have flexible toes

00:24:28to give a good kick to their enemies.

00:24:30They can't really do more damage

00:24:32than what you could get

00:24:34in a fight with a child,

00:24:36but it's better not to contradict them.

00:24:38There are three things

00:24:40that bring out the bad side

00:24:42of a Tasmanian devil.

00:24:44When there is a predator nearby,

00:24:46when they are competing for a partner

00:24:48and when they protect their meal.

00:24:50Bugs Bunny too,

00:24:52but it's a cartoon.

00:24:54These guys normally feed on insects,

00:24:56birds, frogs and fish

00:24:58and they prefer to hunt them.

00:25:00But if you enter their house

00:25:02for some reason,

00:25:04prepare yourself for a painful bite.

00:25:06Their teeth are strong enough

00:25:08to run through the water.

00:25:10Elephants are so smart

00:25:12that they understand the feelings

00:25:14of other elephants

00:25:16and they even try to help each other.

00:25:18Elephants sometimes block roads

00:25:20and show themselves in the villages

00:25:22of people who have been mean to them.

00:25:24Male elephants are particularly aggressive

00:25:26when they fight for females.

00:25:28Be careful of these huge paws,

00:25:30they can really do damage.

00:25:32You'd better prepare your troop.

00:25:34Globe fish can inflate

00:25:36their normal size several times

00:25:38to protect themselves from predators.

00:25:40My brother-in-law can do it too,

00:25:42I'm kidding.

00:25:44Most animals should not try

00:25:46to kill 30 people.

00:25:48And there is no antidote.

00:25:50So if you are alone,

00:25:52you should invite friends

00:25:54to spread the poison.

00:25:56No, I'm kidding.

00:25:58Males tend to consider humans

00:26:00as the greatest danger

00:26:02to their homes and families.

00:26:04Male elephants are particularly aggressive

00:26:06during the spring nesting season

00:26:08from April to June.

00:26:10When kayakers, rammers

00:26:12or fishermen get too close to their nests,

00:26:14they will try to turn your boat over.

00:26:16Dolphins are the only species on the planet,

00:26:18apart from humans,

00:26:20that can take the life of another creature

00:26:22for no logical reason.

00:26:24Males sometimes attack females

00:26:26or even baby dolphins,

00:26:28and they don't do it to feed themselves.

00:26:30If an angry dolphin chases you,

00:26:32you have no chance to put it to sleep.

00:26:34They can move at a speed of 32 km per hour.

00:26:36The top speed of the Olympic swimmer

00:26:38Michael Phelps is only 10 km per hour.

00:26:40So he can't help you.

00:26:42Loricelans are the only venomous primates in the world.

00:26:44They carry poison in their elbows.

00:26:46It is transferred into their mouths

00:26:48during nesting to protect their babies.

00:26:50In addition, they frighten predators

00:26:52such as pythons and eagle falcons

00:26:54by using special marks

00:26:56that show how formidable they are.

00:26:58If a loricelan dies,

00:27:00a person who finds himself on his territory

00:27:02or the gaseous,

00:27:04it can result in cutaneous eruptions,

00:27:06anaphylactic shock, or worse.

00:27:08Despite their massive weight

00:27:10and clumsy body,

00:27:12loricelans can run much faster than humans.

00:27:14And they have much sharper teeth.

00:27:16If you bother them in their race to the water,

00:27:18their aggressiveness is felt.

00:27:20But before attacking you,

00:27:22they will give you some warning signs.

00:27:24If you see a loricelan howl

00:27:26or make a noise that looks like a laugh,

00:27:28it means it is about to get angry.

00:27:30It's quite confusing, isn't it?

00:27:32Blue-ringed octopuses are really tiny,

00:27:34but their venom is a thousand times more powerful

00:27:36than cyanide.

00:27:38They hunt shrimp, crabs, and small fish.

00:27:40If this creature feels threatened,

00:27:42it flashes its blue rings

00:27:44as a warning.

00:27:46If you don't pay attention,

00:27:48it can bite you.

00:27:50You may not notice the bite itself,

00:27:52but a few minutes later,

00:27:54you will probably notice several symptoms.

00:27:56Nausea, bloating,

00:27:58and even the loss of your senses

00:28:00and motor skills.

00:28:02So be careful.

00:28:04Cones are very dangerous creatures.

00:28:06They can attack you

00:28:08and inject their venom.

00:28:10If a cone bites you,

00:28:12you will feel like it is a bee sting.

00:28:14But if you are unlucky enough

00:28:16to meet a bigger one,

00:28:18it can cause bloating,

00:28:20swelling, muscle paralysis,

00:28:22changes in your vision,

00:28:24and even respiratory difficulties.

00:28:26Canadian herons have been living

00:28:28near humans for years.

00:28:30But they are still wary of us,

00:28:32especially during the spring love season.

00:28:34If you want to avoid being attacked

00:28:36by this angry bird,

00:28:38the best thing to do

00:28:40is to move away slowly.

00:28:42Cones have many enemies,

00:28:44both in nature and in cities.

00:28:46Their superpowers against all

00:28:48and their speed and agility.

00:28:50Most of the time,

00:28:52it is quite sure to approach them.

00:28:54But they can still be unpredictable

00:28:56like any wild animal.

00:28:58They bite from time to time,

00:29:00and be careful,

00:29:02they can also bite adults.

00:29:04So to be sure,

00:29:06always walk behind your pets

00:29:08or your children to use them as a shield.

00:29:10Haha, I'm kidding.

00:29:12If you ever see a kangaroo

00:29:14get up on its hind legs,

00:29:16step back.

00:29:18It is their way of warning you

00:29:20that they think you are a threat

00:29:22to their females or their food.

00:29:24They are real pro boxers.

00:29:26They have very long legs

00:29:28and clenched claws.

00:29:30They are quite powerful

00:29:32to break bones.

00:29:34The ornithorhynx has no teeth

00:29:36and feeds mainly on insects

00:29:38and crustaceans.

00:29:40It is one of the only mammals

00:29:42that lay eggs.

00:29:44But these strange species

00:29:46can still hurt you.

00:29:48Males have sharp spines

00:29:50hidden on the heels

00:29:52of their hind legs.

00:29:54These spines contain a venom

00:29:56powerful enough to kill a dog.

00:29:58When a koala bites someone

00:30:00who wants to peck a little too hard,

00:30:02it can transmit unpleasant infections.

00:30:04Raccoons can easily adapt

00:30:06to any environment,

00:30:08including your backyard.

00:30:10They rarely attack humans

00:30:12but can damage your belongings

00:30:14and make you sick.

00:30:16They go everywhere to find food,

00:30:18trash cans or birds' nests

00:30:20and this is where they can catch

00:30:22a large number of different infections.

00:30:24In addition to the disease,

00:30:26when they think you're threatening

00:30:28their dig, a beaver

00:30:30starts to hit the water with its tail

00:30:32as a warning.

00:30:34If you ignore it,

00:30:36it will try to use its teeth

00:30:38against you to protect its family.

00:30:40It is therefore preferable

00:30:42to just turn around

00:30:44and leave it alone.

00:30:46Ostriches spend a large part

00:30:48of their time swimming on the back

00:30:50and they don't worry about cleaning

00:30:52after them.

00:30:54In addition to being very messy,

00:30:56they also have powerful teeth

00:30:58that can be used against

00:31:00any unwanted visitor.

00:31:02Cassowaries are the most dangerous

00:31:04birds on the planet.

00:31:06One of them can weigh as much

00:31:08as a human adult

00:31:10and they have long and powerful legs

00:31:12and claws.

00:31:14They can chase you

00:31:16at a speed of 48 km per hour

00:31:18but fortunately,

00:31:20they try to avoid fighting.

00:31:22Dogs are great!

00:31:24It's not for nothing

00:31:26that we call them

00:31:28the best friends of man.

00:31:30However,

00:31:32each dog is different

00:31:34in terms of temperament.

00:31:36I admit that it is difficult

00:31:38not to stop all the dogs

00:31:40we see to pet them.

00:31:42But not all dogs

00:31:44are necessarily nice

00:31:46to strangers

00:31:48or even to other dogs.

00:31:50You will only cause stress

00:31:52and fear.

00:31:54But don't worry,

00:31:56it is the reason why

00:31:58dog owners have developed

00:32:00the color-coded bandana system

00:32:02to let you know

00:32:04if you have to keep your distance

00:32:06or if you can go

00:32:08and say hello.

00:32:10And above all,

00:32:12these bandanas

00:32:14make their dogs

00:32:16even cuter.

00:32:18Our first canine model

00:32:20is Dwight.

00:32:22He is a 11-year-old

00:32:24golden retriever,

00:32:26big and cuddly.

00:32:28But what does the white bandana

00:32:30around his neck mean?

00:32:32It may break your heart

00:32:34but it means that he has

00:32:36a hearing or sight problem

00:32:38or that he is totally deaf or blind.

00:32:40But that does not mean

00:32:42that his master loves him less.

00:32:44Look how happy he is

00:32:46and you will be relieved to know

00:32:48that his condition has nothing to do

00:32:50with his lifespan.

00:32:52He still has many years

00:32:54ahead of him to jump and sniff

00:32:56in every corner of the street.

00:32:58This only means

00:33:00being careful

00:33:02at the risk of scaring him

00:33:04when you approach him.

00:33:06Well, now that you know

00:33:08what a white bandana means,

00:33:10let's look at the colors

00:33:12of the rainbow that follow.

00:33:14There are two things for us,

00:33:16bipeds, love, anger

00:33:18or passion.

00:33:20But in the world of dogs,

00:33:22it is synonymous with danger.

00:33:24Look at Candy here,

00:33:26she is a 4-year-old Rottweiler.

00:33:28Do you see her red bandana?

00:33:30This means that she will not be very nice

00:33:32to you if you approach her

00:33:34and try to caress her.

00:33:36Even if you see her being affectionate

00:33:38and affectionate towards her masters,

00:33:40do not let yourself be abused.

00:33:42They want to put you on guard

00:33:44against the temperament problems of their dogs.

00:33:46So, if you see other dogs

00:33:48wearing a red bandana like Candy,

00:33:50beware and do not go too close to them.

00:33:52Avoid any interaction

00:33:54and leave them some space,

00:33:56because they should not be bothered.

00:34:00The next color is orange.

00:34:04Here is Buddy,

00:34:06the 6-year-old Labrador Chocolat,

00:34:08who occupies the scene

00:34:10with his orange bandana.

00:34:12This means that he is friendly

00:34:14to all humans,

00:34:16adults, children, etc.

00:34:18However, he does not like

00:34:20to be surrounded by other dogs.

00:34:22A dog may not like

00:34:24to be surrounded by his peers

00:34:26for several reasons.

00:34:28First of all,

00:34:30he may have experienced a traumatic event

00:34:32in the past,

00:34:34like being attacked by another dog.

00:34:36Secondly, he may be frightened

00:34:38by his size difference.

00:34:40Thirdly, he may consider them

00:34:42as a threat to his status.

00:34:44Finally, he may simply be

00:34:46too protective towards his master

00:34:48and consider other dogs

00:34:50as a threat to his safety

00:34:52and that of his master.

00:34:54Whatever the reason,

00:34:56you will know that a dog is afraid

00:34:58or feels threatened

00:35:00thanks to his behavioral signs.

00:35:02He can growl,

00:35:04show teeth,

00:35:06or bark.

00:35:08If you own a dog

00:35:10and you face these problems

00:35:12but your dog's reactions

00:35:14are not so intense,

00:35:16you can try to familiarize him

00:35:18permanently with the contact

00:35:20of other dogs

00:35:22so that he becomes less sensitive.

00:35:24But if he acts uncontrollably,

00:35:26you can ask for the help

00:35:28of a professional canine behaviorist.

00:35:30The next color is that of the sun.

00:35:32Here is Daisy,

00:35:34who walks on the dog's trail

00:35:36wearing a yellow bandana.

00:35:38Yellow may seem like a happy color

00:35:40but it is not really the case

00:35:42in the color system of bandanas.

00:35:44If a dog wears a yellow bandana,

00:35:46it means that you have to approach it

00:35:48slowly and with caution.

00:35:50Indeed, it means that the dog

00:35:52is undergoing therapy

00:35:54or that he is disabled.

00:35:56On the other hand,

00:35:58it can also indicate that he is anxious and nervous.

00:36:00It can be difficult to predict

00:36:02how he will react

00:36:04and he can get angry easily.

00:36:06So you have to be gentle with the dog

00:36:08or stay calm and quiet in his presence.

00:36:10In this way,

00:36:12you can show the owner and the dog

00:36:14that you are a loving dog

00:36:16and that you have respect

00:36:18for the problems they may encounter.

00:36:20Do not forget that it is always useful

00:36:22to ask the owner

00:36:24if he agrees

00:36:26that you approach his dog

00:36:28and caress him.

00:36:30You see his green bandana?

00:36:32Our next dog model

00:36:34is a standard two-year-old dog.

00:36:36You see his green bandana?

00:36:38He looks like a happy little wolf,

00:36:40doesn't he?

00:36:42You probably guessed right.

00:36:44If a dog wears a green bandana,

00:36:46it means that he is friendly and sociable.

00:36:48He loves caresses and games.

00:36:50He will do all kinds of fun things

00:36:52to entertain you

00:36:54because it makes him really happy.

00:36:56The green bandana means

00:36:58that he is a curious dog.

00:37:00He is a real gallant.

00:37:02You can enjoy activities

00:37:04like playing frisbee

00:37:06and rolling in the grass with him.

00:37:08By the way,

00:37:10he does the same for his behavior

00:37:12towards other animals.

00:37:14He is friendly and playful

00:37:16when he is in the presence of other dogs.

00:37:18Nevertheless,

00:37:20you must always ask the owner

00:37:22if you can approach his dog

00:37:24even if he is very friendly.

00:37:26If you see a blue bandana

00:37:28around a dog's neck,

00:37:30it doesn't mean that he is sad

00:37:32or anything like that.

00:37:34You just have to see

00:37:36how happy Milo,

00:37:38the three-year-old husky,

00:37:40looks.

00:37:42If a dog wears a blue bandana,

00:37:44it simply means

00:37:46that he is a working dog

00:37:48or a training dog.

00:37:50Unlike company dogs,

00:37:52working dogs are trained by professionals

00:37:54for specific tasks.

00:37:56There are many types of working dogs,

00:37:58including assistance dogs

00:38:00who are trained to help

00:38:02disabled people in certain daily tasks,

00:38:04search and rescue dogs,

00:38:06herd dogs

00:38:08and detection or sniffing dogs.

00:38:10In addition,

00:38:12we believe that dogs must accomplish tasks

00:38:14and always have something to do,

00:38:16whether they are companions

00:38:18or working dogs.

00:38:20They will live much longer

00:38:22because these tasks will keep them physically

00:38:24and mentally active.

00:38:26This will also help eliminate

00:38:28undesirable behaviors

00:38:30such as excessive drinking.

00:38:32Finally,

00:38:34we have the purple bandana.

00:38:36Our last dog model

00:38:38is Louis, the six-year-old carlin.

00:38:40Unfortunately,

00:38:42this hairy ball is a little allergic.

00:38:44That's why she's wearing this purple bandana.

00:38:46It's to tell you that you shouldn't

00:38:48give her food without asking

00:38:50her owner.

00:38:52In fact, it's good for all dogs,

00:38:54even if they don't have a purple bandana around their neck.

00:38:56Indeed, some food without danger

00:38:58for humans can be very harmful

00:39:00for dogs.

00:39:02The list of the 10 most dangerous

00:39:04food for dogs is as follows.

00:39:06Avocado, grapes and raisins.

00:39:08Garlic and onions.

00:39:10Drinks containing caffeine.

00:39:12Macadamia nuts.

00:39:14Cooked oats.

00:39:16Salt, milk and other dairy products.

00:39:18Artificial sweeteners.

00:39:20Candies and chocolate.

00:39:22However, foods such as carrots,

00:39:24apples, cucumbers,

00:39:26blueberries and green beans

00:39:28are among the safest options.

00:39:30However,

00:39:32it is important to note that

00:39:34if for some dogs,

00:39:36some foods can be eaten without danger,

00:39:38others can be allergic to them.

00:39:40For example, chicken is generally

00:39:42considered a safe food,

00:39:44but it can cause skin problems

00:39:46in some dogs.

00:39:48This is where the purple bandana is useful

00:39:50if a dog wearing one

00:39:52doesn't get anything to eat without

00:39:54consulting its owner.

00:39:56Don't forget that

00:39:58no matter the color of the bandana,

00:40:00you should never assume

00:40:02the reaction of a dog

00:40:04and you should always ask its owner

00:40:06if you can interact with it.

00:40:08Here's how to protect

00:40:10your bank card from potential scams.

00:40:12Take a marker

00:40:14and mark the last four digits.

00:40:16You can also use a sticker

00:40:18that is easy to remove and place

00:40:20on the security code.

00:40:22Have you ever had a guest

00:40:24who unfortunately didn't use

00:40:26his underwear?

00:40:28Take a hair dryer and hold it

00:40:30a few centimeters from the bandana.

00:40:32Plug it on medium heat for a few minutes

00:40:34to evaporate the trace.

00:40:36If a discolored trace persists,

00:40:38mix the same amount of vinegar

00:40:40and olive oil in a bowl.

00:40:42Take the marked area and rub

00:40:44until the stain disappears,

00:40:46then wipe.

00:40:48Don't waste time

00:40:50scrubbing the burn marks

00:40:52on the bottom of a pan.

00:40:54Instead, fill it with water

00:40:56and add three tablespoons of salt.

00:40:58Let it sit overnight

00:41:00so the salt dissolves the cooking residues

00:41:02and in the morning,

00:41:04empty the water from the pan.

00:41:06This way, it will be much easier

00:41:08to remove all this grease.

00:41:10The next morning,

00:41:12your shirt is all cold in your suitcase.

00:41:14You need it tonight,

00:41:16but the hotel has no iron to iron.

00:41:18Don't panic.

00:41:20Hang the shirt in the bathroom

00:41:22and while you take a hot shower,

00:41:24the heat and humidity

00:41:26will defrost your shirt.

00:41:28OK, it won't be perfect,

00:41:30but it will be much better

00:41:32and all without any effort.

00:41:34The football match will start

00:41:36from one moment to the next

00:41:38You can use a smaller battery

00:41:40instead, which will easily

00:41:42fit inside.

00:41:44Now, take aluminum foil

00:41:46and cool it.

00:41:48Place the aluminum ball in the space

00:41:50located on the negative or flat end

00:41:52of the battery.

00:41:54Now, you can turn on the TV.

00:41:56When your tongs break

00:41:58and the piece of plastic

00:42:00escapes from its hole,

00:42:02it's probably a sign

00:42:04that you need a new pair.

00:42:06Now, put the piece back in its hole

00:42:08and attach the pliers

00:42:10that you can find on the bread bags.

00:42:12The pliers will provide

00:42:14enough support for the sandals

00:42:16to stay in place.

00:42:18You received a package

00:42:20and the invoice is taped on it.

00:42:22You managed to detach it from the box,

00:42:24but then, how do you remove the tape

00:42:26without tearing the paper?

00:42:28Grab the two ends of the adhesive tape.

00:42:30If you pull slowly,

00:42:32the tape will stretch

00:42:34and you will be able to remove the paper

00:42:36without tearing it.

00:42:38Fresh bags are perfect

00:42:40to keep things dry,

00:42:42but it would be great

00:42:44if they were bigger, wouldn't it?

00:42:46Take two and turn one of them.

00:42:48They can now attach to each other

00:42:50and form a big bag,

00:42:52big enough to protect a keyboard,

00:42:54for example.

00:42:56No need to carry your keys

00:42:58in your hand during your next jog.

00:43:00Put them in your pocket,

00:43:02so your keys won't fall.

00:43:04You broke your key in the door.

00:43:06It's stuck in there.

00:43:08Great!

00:43:10Calling a locksmith

00:43:12may cost more than a hundred euros.

00:43:14For a cheaper and faster solution,

00:43:16try using a hot glue stick.

00:43:18Heat the end with a lighter

00:43:20and once it's hot enough

00:43:22to melt,

00:43:24insert the glue into the lock hole.

00:43:26The melted glue will enter

00:43:28the available space,

00:43:30leaving a part of the key.

00:43:32Once cooled,

00:43:34it will combine

00:43:36and stick firmly to the end of the key,

00:43:38which you just have to remove.

00:43:40If you have to siphon liquid

00:43:42through a pipe

00:43:44and you want to avoid putting it in your mouth,

00:43:46dip one end in the liquid

00:43:48and hold the other end up

00:43:50with your thumb that closes the top.

00:43:52Now stir from top to bottom.

00:43:54This shaking movement

00:43:56will push the liquid up

00:43:58and down.

00:44:00Once it reaches the top,

00:44:02lower the pipe

00:44:04and leave the gravity to the rest.

00:44:06You forgot your car keys

00:44:08in your locked car.

00:44:10It's an old model

00:44:12with a mechanical window.

00:44:14You could take a belt

00:44:16and try to unlock the lock,

00:44:18but it's long and complicated.

00:44:20Or you can use an adhesive tape.

00:44:22Make about twenty strips

00:44:2460 centimeters long,

00:44:26then with a friend

00:44:28take the ends of the adhesive tape

00:44:30and by holding them together,

00:44:32pull the big tape down.

00:44:34The force exerted

00:44:36will allow the window to lower sufficiently

00:44:38so that you can unlock the door.

00:44:40When you install

00:44:42large screws in hard wood,

00:44:44your old drill may not be

00:44:46powerful enough,

00:44:48which leaves them half-dented

00:44:50before they declare bankruptcy.

00:44:52So take a block of wax

00:44:54The wax works like a lubricant.

00:44:56It melts when it is hot

00:44:58and will facilitate the passage of the screw.

00:45:00You went camping,

00:45:02but you didn't bring anything

00:45:04to light the barbecue.

00:45:06Take a small plastic bag,

00:45:08fill it with water

00:45:10and close it carefully

00:45:12forming a round ball.

00:45:14Hold it above the place

00:45:16where you want to capture the sunlight.

00:45:18The water bag will work like a magnifying glass

00:45:20lighting the barbecue.

00:45:22You also forgot your plug

00:45:24where your plug broke

00:45:26in half in the gutter.

00:45:28With a lighter,

00:45:30heat the top of the bottle.

00:45:32The heat will slightly dilate the glass,

00:45:34which will eject the plug from above.

00:45:36You still put superglue

00:45:38on your fingers.

00:45:40Take salt and pour it

00:45:42on your glued fingers.

00:45:44Put your fingers under the water

00:45:46and rub gently.

00:45:48The mixture will dissolve the glue

00:45:50By hooking a painting,

00:45:52it may be impossible to find

00:45:54the right distance between the wall and the painting.

00:45:56Place a fork upside down

00:45:58and insert it so that you can slide

00:46:00the nail between the central teeth of the fork.

00:46:02The fork has a long handle

00:46:04separated from the wall,

00:46:06which makes it easier to slide

00:46:08the string of the painting on the nail.

00:46:10Once the painting is perfectly balanced,

00:46:12just remove the fork.

00:46:14You have to put a cake

00:46:16in a box,

00:46:18but if you want to take it out later,

00:46:20you risk damaging it.

00:46:22Place the lid upside down

00:46:24and place the cake directly on the lid.

00:46:26This one now serves as a base for the container,

00:46:28which will greatly simplify

00:46:30access to the cake,

00:46:32piece by piece.

00:46:34You can quickly empty the water

00:46:36from large containers and bottles

00:46:38by forming a whirl.

00:46:40By shaking it in a circle,

00:46:42you will create a kind of vortex

00:46:44that will allow the air

00:46:46to escape much faster than the usual method.

00:46:48There is an easier

00:46:50and less dirty way

00:46:52to remove the shells of a hard-boiled egg.

00:46:54Once the egg is cooked,

00:46:56break the shell at both ends

00:46:58by tapping it.

00:47:00On one side, remove the shell by scratching it,

00:47:02then blow directly with your mouth

00:47:04on the open end.

00:47:06The force of the air will push the egg

00:47:08and dilate the shell,

00:47:10which will allow it to come out without damage.

00:47:12If the hinges

00:47:14of your laptop break,

00:47:16you know that their repair can cost

00:47:18several hundred euros.

00:47:20A much cheaper solution

00:47:22is to buy a photo frame

00:47:24and stick it to the back of the screen.

00:47:26You dropped a little jewel

00:47:28on the floor and you tell yourself

00:47:30that you will never find it again.

00:47:32Take a sock and place it

00:47:34on the end of the hose of your vacuum cleaner.

00:47:36Suck the area well

00:47:38and check the hose regularly.

00:47:40You will end up finding your jewel

00:47:42this time.

00:47:44It's time for the big spring cleaning.

00:47:46You put on a rag and a broom

00:47:48to get rid of all these spider webs

00:47:50on your windows.

00:47:52They have no chance this time.

00:47:54By removing one web after another,

00:47:56you suddenly notice mud

00:47:58with strange shapes stuck

00:48:00under the roof and the porch.

00:48:02What is it?

00:48:04You suddenly realize

00:48:06it must be geckos' nests.

00:48:08With so many nests side by side,

00:48:10fortunately, geckos are

00:48:12solitary insects.

00:48:14All these little nests

00:48:16are full of paralyzed spiders.

00:48:18Sometimes up to 500 spiders

00:48:20can be trapped in these boxes,

00:48:22waiting for the young geckos to hatch.

00:48:24If the nest has holes,

00:48:26it can indicate that it is old

00:48:28or abandoned because geckos

00:48:30drill holes to leave their nest.

00:48:32If you want to remove them,

00:48:34it is better to wait for the night

00:48:36when they are not so active.

00:48:38If they feel threatened,

00:48:40they will not hesitate to sting.

00:48:42It looks like an insect was half-conceived

00:48:44and then its creator stopped.

00:48:46The toad cricket

00:48:48really seems to come from another world.

00:48:50With toad claws,

00:48:52a cricket body

00:48:54and a shrimp head,

00:48:56this creature is a bit like the insect world's

00:48:58ornithorynchus.

00:49:00It is not venomous and only dies

00:49:02if you trap it in your hand.

00:49:04And if you really annoy it,

00:49:06you can put it in its sleeve,

00:49:08its wings.

00:49:10They can spit a brown liquid

00:49:12that smells bad,

00:49:14just like the fly.

00:49:16So just leave them at home

00:49:18and there will be nothing to clean.

00:49:20The rock basins are full

00:49:22of all kinds of plants and animals.

00:49:24Marine creatures such as

00:49:26sea stars, marine herbs,

00:49:28hermit crickets,

00:49:30small fish and all kinds of octopuses.

00:49:32If you think this little octopus

00:49:34has a good reason,

00:49:36this tiny octopus has a venomous bite

00:49:38a thousand times stronger than cyanide

00:49:40and no antidote available.

00:49:42Don't try to tickle it with a stick

00:49:44or pick one up.

00:49:46It's not worth the trip to the hospital

00:49:48or the morgue.

00:49:50Earth snakes may be scary,

00:49:52but marine snakes are on a whole other level.

00:49:54In the Indian and Pacific Oceans,

00:49:56there are about 50 different species

00:49:58of sea snakes

00:50:00and they are as beautiful as dangerous.

00:50:02Fortunately,

00:50:04they don't seem to care about us.

00:50:06The sea snake of Dubois

00:50:08is undoubtedly the most venomous

00:50:10in the ocean,

00:50:12nicknamed the beak sea snake.

00:50:14Their venom would make you forget

00:50:16the bite of a cobra.

00:50:18The venom of these two snakes

00:50:20is extremely dangerous.

00:50:22Fortunately for us,

00:50:24it can take hours to cause symptoms

00:50:26in humans, and it would take them

00:50:28to pierce your diving suit.

00:50:30You could scream a little,

00:50:32but we wouldn't blame you.

00:50:34The scorpion fly, as its name suggests,

00:50:36has a curved tail that looks like

00:50:38a scorpion dart.

00:50:40But you can blow on it,

00:50:42it is only used for coupling.

00:50:44It also has a long beak-shaped head

00:50:46that is used to feed

00:50:48after flying insects

00:50:50in spider webs.

00:50:52To find the ideal partner,

00:50:54it loves to make gifts in the form of saliva.

00:50:56How romantic!

00:50:58Sit next to this big bird

00:51:00if you don't pay attention.

00:51:02The scorpion fly will immobilize

00:51:04when you pass in front of it.

00:51:06Being able to measure up to 1.5 meters

00:51:08and have a wingspan of 2.5 meters,

00:51:10the scorpion fly looks like a predator,

00:51:12although it is anything but.

00:51:14Known as one of the slowest birds

00:51:16in the world, almost a statue,

00:51:18the scorpion fly only eats

00:51:20fish near the surface of the water,

00:51:22without worrying about the world.

00:51:24This bird is not at all afraid of humans.

00:51:26Although it is not very talkative,

00:51:28it will let you approach it enough

00:51:30to take some pictures.

00:51:32If you hear a little squeak

00:51:34while you are in the garden,

00:51:36it could be a mouse, a squirrel

00:51:38or a rhinoceros beetle

00:51:40that lets you know that you are too close.

00:51:42They love to make noise

00:51:44when they are disturbed.

00:51:46With their giant and scary horns on their heads,

00:51:48they may seem able to defend themselves,

00:51:50but this is not the case.

00:51:52They only use it to move the leaves

00:51:54of the trees in their path

00:51:56and to prevent other mammals

00:51:58from entering the female's parrots.

00:52:00Not only do they have a horn on their head,

00:52:02but they also have a Herculean strength.

00:52:04They are able to lift

00:52:06their own weight 850 times.

00:52:08It's as if you could lift

00:52:1065 tons or 11 elephants.

00:52:14Living mainly in China,

00:52:16the little U.P. deer is adorable

00:52:18with his hair bun.

00:52:20In any case, until he turns around

00:52:22he looks like a vampire deer.

00:52:24Fortunately, this animal

00:52:26does not want to taste your blood

00:52:28or wear a cape.

00:52:30Only males grow these attributes

00:52:32rather than wood during the season of love

00:52:34in order to fight over territories and females.

00:52:36These crows look more like

00:52:38elephant defenses than

00:52:40clenched teeth.

00:52:42Not only do they have crows,

00:52:44but they are also known to bark like dogs

00:52:46and flee like cats when they are afraid.

00:52:48The red tide is a proliferation

00:52:50of toxic algae that rises from the bottom

00:52:52of the sea after particularly violent storms.

00:52:54This algae looks a lot like

00:52:56ketchup or rust

00:52:58poured into the water,

00:53:00but it is much worse for the life around it.

00:53:02Fish and marine organisms

00:53:04will try to escape

00:53:06once exposed to the toxic algae

00:53:08present in their water.

00:53:10It is not particularly harmful

00:53:12for humans who are exposed to it,

00:53:14but if you eat seafood contaminated

00:53:16by these toxins,

00:53:18it can be a little more serious.

00:53:20So if the sea is red,

00:53:22stay out of the water.

00:53:24Some spiders like to harbor bright colors

00:53:26to show that they are dangerous,

00:53:28but not the Australian Robustus atrax.

00:53:30This shiny black spider

00:53:32does not need fireworks

00:53:34to prove that it is strong.

00:53:36It can be very dangerous

00:53:38if it decides to bite you.

00:53:40It can stop your nervous system

00:53:42in just 30 minutes.

00:53:44Wearing their web in any shelter

00:53:46the Australian Robustus atrax

00:53:48like to live near our habitat

00:53:50to feed easily.

00:53:52When they have had enough of a place,

00:53:54they leave their web behind them

00:53:56and go in search of a new place.

00:53:58Some say that rattlesnakes are intrepid

00:54:00and in a way they may be right.

00:54:02When you are brave enough

00:54:04to steal food from a jaguar,

00:54:06a lion or a hyena,

00:54:08what are you afraid of?

00:54:10These cousins of the beetle

00:54:12are not only ferocious,

00:54:14they are even known to use tools

00:54:16to escape enclosures.

00:54:18Things like rats,

00:54:20stones and mud

00:54:22become climbing objects

00:54:24to regain their freedom.

00:54:26In addition to their physical resemblance

00:54:28to the beetle,

00:54:30rattlesnakes have a dangerous gland

00:54:32near their tail

00:54:34that contains a powerful swallowing machine.

00:54:36They are therefore brave,

00:54:38smelly,

00:54:40have an extremely elastic and resistant skin

00:54:42and have a strong sense of smell.

00:54:44The best thing to do

00:54:46if you come across a rattlesnake

00:54:48is to leave it alone.

00:54:50Have you ever heard of the mushroom

00:54:52Hydnel de Peck?

00:54:54No?

00:54:56And its other name,

00:54:58the toothless mushroom?

00:55:00This mushroom is not toxic,

00:55:02but it has such a bitter taste

00:55:04that you should think twice

00:55:06before tasting one.

00:55:08When it is young and in full growth,

00:55:10the glue is sap

00:55:12pushed upwards because it has absorbed too much water.

00:55:14The adult mushroom

00:55:16is rather bland compared to this.

00:55:18Under the mushroom's hat,

00:55:20where its spores are produced,

00:55:22there is a structure in the shape of a tooth,

00:55:24as if it were not already weird enough.

00:55:26Tasmanian devils

00:55:28have the reputation of having a very bad temper

00:55:30when they feel threatened by a predator,

00:55:32when they fight with other males

00:55:34or when they look for a place to eat.

00:55:36They are nicknamed devils

00:55:38because of their teeth

00:55:40and one of the most frightening cries

00:55:42in the middle of the night.

00:55:44They eat about everything they can find.

00:55:46They are not used to going to people,

00:55:48although they know how to defend themselves

00:55:50if they are threatened.

00:55:52And since their bite is powerful,

00:55:54fortunately the Tasmanian devils

00:55:56prefer to escape.

00:55:58Can you believe it?

00:56:00There are two ways to drink juice

00:56:02in a brick.

00:56:04The first technique is the best known.

00:56:06The shortest part

00:56:08is found at the bottom of the brick.

00:56:10By using the first method,

00:56:12you will have trouble finishing your drink

00:56:14until the last drop

00:56:16because the straw does not reach the corners of the brick.

00:56:18But some straws have pointed tips

00:56:20to be able to pierce the hopper.

00:56:22That's why some people prefer to drink

00:56:24by following the normal method.

00:56:26We continue the information on straws.

00:56:28Did you know that there is a good way

00:56:30to drink a soda in a can with a straw?

00:56:32You want to drink a very fresh coca.

00:56:34You take your can and you put your straw in the hole.

00:56:36Oh la la!

00:56:38The straw moves in all directions.

00:56:40Do you see this hole?

00:56:42Turn the tongue of the can

00:56:44inside and put your straw in the hole.

00:56:46It will serve as a straw holder.

00:56:48No need to break your head.

00:56:50What is the best way to eat a cupcake?

00:56:52Transform it into a sandwich.

00:56:54Step 1. Remove the paper mold.

00:56:56Step 2. Divide your cupcake in two.

00:56:58Step 3.

00:57:00Put the lower part of the cupcake

00:57:02on top of the icing.

00:57:04There you go!

00:57:06You can eat your cupcake like a pro.

00:57:08OK, another quick info on cakes.

00:57:10People use kitchen knives

00:57:12to cut their cakes in half.

00:57:14But you can use a wire.

00:57:16Take a piece of wire

00:57:18and pass it around your cake horizontally.

00:57:20Hold the ends with your two hands,

00:57:22cross them and pull.

00:57:24There you go! It's perfectly cut.

00:57:26Easy, isn't it?

00:57:28You can always use wire

00:57:30to cut your cake vertically.

00:57:32It's a good way not to damage the icing.

00:57:34Do you dip your Oreos in the milk

00:57:36with your fingers?

00:57:38Try using a fork.

00:57:40Place it between the cookies

00:57:42vertically and dip your Oreo.

00:57:44Try it. I'll continue with my fingers.

00:57:46I've done this all my life.

00:57:48I'm a real rebel.

00:57:50You put your dish in the microwave.

00:57:52The dish is hot and the first layer

00:57:54of food makes smoke.

00:57:56You start eating and...

00:57:58The dish didn't warm up evenly.

00:58:00If you want your food to warm up

00:58:02evenly, spread it out

00:58:04like a donut on a plate

00:58:06leaving a hole in the middle.

00:58:08The central part of your dish

00:58:10takes longer to warm up.

00:58:12By the time the center warms up,

00:58:14the edges are probably already burning.

00:58:16Sometimes you need to

00:58:18put two bowls in the microwave at the same time.

00:58:20In this case, try placing

00:58:22the second bowl on a cup.

00:58:24You'll have more space to place them both.

00:58:26You need to find creative solutions

00:58:28when you have a small microwave.

00:58:30Make sure the cup is well-fixed,

00:58:32however. Cleaning a microwave

00:58:34takes more time than using

00:58:36this method.

00:58:38To save space in your suitcase,

00:58:40you should wrap your clothes instead of folding them.

00:58:42They won't freeze and

00:58:44will take up less space.

00:58:46OK, let's continue with another

00:58:48suitcase organization tip.

00:58:50After wrapping your clothes,

00:58:52place them vertically and not horizontally.

00:58:54This will take up less space

00:58:56and you'll be able to put

00:58:58lots of other essential items inside.

00:59:00Cold coffee is

00:59:02the ideal drink to refresh yourself

00:59:04in the summer. Unfortunately,

00:59:06ice melts very quickly and the taste of coffee

00:59:08changes. To avoid this problem,

00:59:10you can freeze coffee in a cup

00:59:12in advance. This way,

00:59:14the coffee won't be diluted excessively.

00:59:16Showering too often

00:59:18is not good for your hair.

00:59:20Experts advise to wash your hair

00:59:222 to 3 times a week.

00:59:24Too frequent washing

00:59:26makes your hair fatter.

00:59:28Did you know there is a good way to put salami

00:59:30on a toast? It's a

00:59:32geometry problem.

00:59:34You have to place round objects,

00:59:36slices of salami, on a square slice of bread.

00:59:38You can, of course, use

00:59:40the traditional method,

00:59:42which is to put two slices side by side.

00:59:44But the corners of your sandwich

00:59:46will remain empty. Just cut

00:59:48the slices of salami in their center.

00:59:50Put the right side on the side of the toast.

00:59:52Your four slices of salami

00:59:54will cover all your bread.

00:59:56Most people peel their banana

00:59:58starting from the top, but that

01:00:00crushes the fruit. The best way

01:00:02to peel a banana is to do it

01:00:04starting from the bottom. Observe the monkeys.

01:00:06They apparently discovered this

01:00:08technique a long time ago.

01:00:10Do you need more space

01:00:12in your storage closet? Here's

01:00:14a tip for you. You can hang

01:00:16a clothes hanger on purpose,

01:00:18so it's easy to spot online or

01:00:20in stores. It's a good way

01:00:22to put everything away and make

01:00:24room for other cleaning products.

01:00:26There's a good way

01:00:28to hold a burger.

01:00:30First, you have to hold it with

01:00:32both hands. Then, you have to

01:00:34place your little fingers next to your

01:00:36thumbs as support. You want to

01:00:38block out unwritten words? You could

01:00:40simply scratch them, but this way

01:00:42you can still see them.

01:00:44To make them practically unreadable,

01:00:46you can write random letters on top.

01:00:48Problem solved!

01:00:50What's the best way

01:00:52to cut a crispy bun?

01:00:54You have to flip it over. The bottom

01:00:56of the bun is usually less hard.

01:00:58Try not to crush it too much.

01:01:00Usually, you drain your pasta

01:01:02by putting the colander in the sink.

01:01:04You drain all that and put the pasta

01:01:06back in the pan. But this isn't

01:01:08the best method. Sometimes,

01:01:10the pasta goes through the holes in the colander.

01:01:12The second option is less

01:01:14of a problem. Place the colander

01:01:16in the pan and drain your pasta

01:01:18while still keeping the colander inside.

01:01:20No need to take your pasta out.

01:01:22Obviously, it works better if the

01:01:24colander is the right size.

01:01:26If you don't intend to buy several

01:01:28colanders, you can always use this

01:01:30method, but be more careful

01:01:32when draining.

01:01:34Does your freezer damage

01:01:36food sometimes? You put dishes

01:01:38nearby and other food in the freezer

01:01:40and two weeks later, you discover

01:01:42that everything is covered in frost.

01:01:44There are two explanations for this.

01:01:46First, your freezer is too full.

01:01:48Being too full can block

01:01:50ventilation. In doing so,

01:01:52the air in the freezer doesn't circulate

01:01:54properly anymore. The second reason

01:01:56concerns the temperature.

01:01:58The temperature of a freezer should

01:02:00be close to minus 18 degrees.

01:02:02What is the best way to

01:02:04keep a fly? Most people

01:02:06keep it at 12, 2

01:02:08and 10 o'clock. It's not

01:02:10safe, even if you have three arms.

01:02:12For those of us who only have two arms,

01:02:14the best way to keep your fly

01:02:16would be to put one hand at 3 o'clock

01:02:18and the other at 9 o'clock.

01:02:20The hands are thus placed at the joints

01:02:22so as to leave room for the airbag.

01:02:24A different grip on the fly

01:02:26can prevent the airbag from

01:02:28completely inflating.

01:02:30Toblerone is a very chic chocolate bar,

01:02:32but did you know that there is

01:02:34a technique to separate the pieces?

01:02:36Just push the triangle

01:02:38you want to eat towards the rest

01:02:40of the bar. Who would have thought?

01:02:42Pringles are still a delicious

01:02:44thing, but difficult to eat.

01:02:46When you try to reach the chips

01:02:48at the bottom of the tube,

01:02:50don't get your hand stuck in it.

01:02:52Use a sheet instead. Fold it

01:02:54in length and slide it into the tube.

01:02:56Slowly pull it out.

01:02:58And there you have it, a crispy

01:03:00treat platter.

01:03:02Let's be honest, it would be very

01:03:04difficult to visit the world's largest

01:03:06underwater waterfall.

01:03:08At the bottom of the ocean,

01:03:10in the depths, there are cracks

01:03:12and caverns. They form when

01:03:14the water crosses the layers of salt

01:03:16below.

01:03:18This water is filled with dissolved salt.

01:03:20It is therefore denser than the surrounding

01:03:22water, which is why it ends up

01:03:24in these cracks.

01:03:26This type of dense water forms

01:03:28a huge waterfall near Denmark.

01:03:30It is a giant waterfall that

01:03:32goes down to 3,500 metres.

01:03:34It is more than three times the height

01:03:36of the famous Angel Falls in Venezuela.

01:03:38Thus, the colder water

01:03:40of this waterfall sinks after

01:03:42colliding with the surrounding water,

01:03:44which is less dense.

01:03:46The highest mountain in the world

01:03:48is also submerged, at least in part.

01:03:50If you put it side by side

01:03:52with Mount Everest, the mountain

01:03:54we consider the highest,

01:03:56Everest would be like a small hill

01:03:58compared to Mount Mauna Kea.

01:04:00It is a giant mountain,

01:04:02but also a volcano,

01:04:04which is half above the water

01:04:06and half under the water.

01:04:08From top to bottom, it culminates

01:04:10at 10,211 metres,

01:04:12nearly a kilometre more than Everest.

01:04:14The Titanic almost collided

01:04:16a few days before it hit an iceberg

01:04:18and sank.

01:04:20This is what a steward of the ship

01:04:22wrote in a letter to his wife.

01:04:24He mentioned that when the Titanic

01:04:26left the quay in April 1912,

01:04:28it almost collided with

01:04:30Mount Everest, City of New York.

01:04:32They managed to avoid this accident

01:04:34and took the sea for a journey

01:04:36that would become one of the greatest

01:04:38mysteries and one of the greatest

01:04:40stories in modern history.

01:04:42So a simple little hang in the port

01:04:44could have saved all these lives.

01:04:46We all have digital fingerprints

01:04:48and unique language fingerprints

01:04:50that make us different from each other,

01:04:52even the real twins.

01:04:54In the same way, you can identify

01:04:56lions thanks to their mustaches.

01:04:58In the 1960s,

01:05:00scientists discovered that they could

01:05:02identify each of them thanks to the

01:05:04tacks of the baboons that can be seen

01:05:06on each side of the face in line.

01:05:08If you get closer to see,

01:05:10a little closer,

01:05:12well, maybe we'll just have to

01:05:14trust this point.

01:05:16There is a certain species of predator

01:05:18fish that can walk on the ground.

01:05:20No, this is not a movie script,

01:05:22rather something taken from your worst nightmares.

01:05:24These animals are called

01:05:26snake heads and they sometimes

01:05:28come out on the ground when they

01:05:30are looking for food.

01:05:32They have evolved and have branches

01:05:34and a special organ that allows them

01:05:36to breathe oxygen located in their

01:05:38branches. So they are not in a hurry

01:05:40to come back to the water right away.

01:05:42They let themselves fall on their

01:05:44fins and can move up to 0.4 km.

01:05:46These creatures can weigh

01:05:48about 6.4 kg

01:05:50and live in different places

01:05:52like Florida, California

01:05:54and Great Britain.

01:05:56As if it were not scary enough,

01:05:58snakehead fish are native to Asia

01:06:00and Africa, which makes them an

01:06:02invading species in North America.

01:06:04This means that they do not have

01:06:06natural predators, so that their

01:06:08population can grow uncontrollably.

01:06:10Have you ever wondered what stuffed

01:06:12animals attached to the front of

01:06:14huge trucks were doing?

01:06:16These toys are comparable to

01:06:18decorative figures that decorate

01:06:20the bow of ships.

01:06:22The idea is to show the world

01:06:24their identity.

01:06:26Nowadays, the goal of the message

01:06:28is to be able to say that truckers

01:06:30are harmless and nice.

01:06:32The need to send this kind of message

01:06:34may come from the fact that people

01:06:36mostly see delivery trucks as

01:06:38giant beasts that dominate the

01:06:40highways with their crampons

01:06:42that naturally push you away.

01:06:44We also sometimes see stuffed

01:06:46animals attached to the front

01:06:48of garbage trucks.

01:06:50They may be old and defective,

01:06:52but they still give their vehicles

01:06:54a bit of personality and

01:06:56conviviality.

01:06:58Just like the bumper sticker you

01:07:00have on your car, it's a matter

01:07:02of personalization.

01:07:04If you were on Mars right now,

01:07:06you could probably enjoy listening

01:07:08to the winds blowing there.

01:07:10Sensors installed by researchers

01:07:12on Mars detected vibrations that

01:07:14turned out to be the first sounds

01:07:16ever recorded from the Martian wind.

01:07:18They are so beautiful that humans

01:07:20can perceive them, but you would

01:07:22still need the help of your

01:07:24headphones.

01:07:26About 50 years ago, a Frenchman,

01:07:28Michel Lolito, started a very

01:07:30particular task, eating a Cessna

01:07:32150 aircraft.

01:07:34He soon developed a rare tolerance

01:07:36to eat dangerous things.

01:07:38But where was his mother?

01:07:40In fact, he suffered from a rare

01:07:42disease, pica, which makes you want

01:07:44to eat things that are generally

01:07:46dangerous, like toys, grass,

01:07:48or in this case, an entire plane.

01:07:50It took him two years to finish

01:07:52this big meal full of metal,

01:07:54and then he took off.

01:07:56Venus is the only planet in our

01:07:58solar system that rotates in the

01:08:00direction of the needles of a watch.

01:08:02At first, the solar system was

01:08:04just a cloud of gas and

01:08:06whirling dust, like me in

01:08:08an amusement park.

01:08:10At one point, it collapsed into

01:08:12a rotating disc, and the sun

01:08:14disappeared.

01:08:16Thus, all the planets move

01:08:18around the central star on

01:08:20about the same plane.

01:08:22Planets also rotate in the same

01:08:24direction, in the opposite direction

01:08:26of the needles of a watch, if you

01:08:28observe them from above.

01:08:30At least, most of them.

01:08:32Uranus rotates on the side, and

01:08:34Venus rotates in the opposite direction.

01:08:36This is probably due to giant asteroids

01:08:38that made them deviate from their

01:08:40trajectory a very, very long time ago.

01:08:42Earth, ocean, lake, river.

01:08:44But if all this water evaporated

01:08:46and fell under the shape of a

01:08:48giant storm, our entire planet

01:08:50would be covered by 2.5 cm of rain.

01:08:52Things are a little different

01:08:54with gold.

01:08:56All the gold located in the core

01:08:58of our planet could cover the

01:09:00Earth from a knee-high layer.

01:09:02Yes, there is a gold reserve

01:09:04in the depths.

01:09:06It flowed when the Earth was

01:09:08still in the formation phase,

01:09:10but we can't reach this precious

01:09:12metal. Too stupid!

01:09:14We could think that we can only

01:09:16see rainbows during the day,

01:09:18but they can also occur at night.

01:09:20This rare optical phenomenon,

01:09:22called lunar rainbows, occurs

01:09:24when the light from the Moon

01:09:26is refracted by droplets of water

01:09:28in the air. Lunar rainbows

01:09:30are generally very weak and rare,

01:09:32because even with a full moon very

01:09:34bright, the light produced is

01:09:36much lower than that of the Sun.

01:09:38The inventor of microwaves

01:09:40did not really intend to create

01:09:42the device we know today

01:09:44under the name of a microwave.

01:09:46In fact, he was testing a

01:09:48radar magnetron, which is something

01:09:50like an electric whistle that

01:09:52produces electromagnetic waves

01:09:54that vibrate. OK, while he was

01:09:56testing all this and experimenting

01:09:58with the magnetron's tube level,

01:10:00he saw that the cereal bar he had

01:10:02in his pocket had melted.

01:10:04He tested this mechanism again,

01:10:06and he found 6 and an egg.

01:10:08He then understood that he had

01:10:10found something potentially much

01:10:12more useful than the problem

01:10:14he was trying to solve at first.

01:10:16In addition, he could reheat

01:10:18his lunch. The world's largest

01:10:20tropical tree measures 100 metres

01:10:22for a weight of more than

01:10:2481,647 kilograms. It's bigger

01:10:26than a commercial plane.

01:10:28You can find it on the island

01:10:30of Borneo in Malaysia.

01:10:32One of the local climbers

01:10:34The wind was strong and the ascent

01:10:36was scary, but it paid off

01:10:38because the view was magnificent,

01:10:40and he became the first tree climber.

01:10:42Well, I guess.

01:10:44In medieval times,

01:10:46you could find shoes that were

01:10:480.6 metres. People liked

01:10:50pointy shoes. They were very popular

01:10:52for several centuries, starting

01:10:54in the 12th century. People filled

01:10:56their toes with wool, moss,

01:10:58grass or hair. Another way

01:11:00to fill the empty space was to

01:11:02hold the shoes with whale bones

01:11:04because that's how they kept their shape.

01:11:06Fashion always changes,

01:11:08so at the end of the 15th century,

01:11:10I wasn't there at the time,

01:11:12people started wearing

01:11:14short, square-shaped shoes,

01:11:16like the shape of a cow's hooves.

01:11:18Yes, it's a fashion phenomenon,

01:11:20that's for sure. Have you ever wondered

01:11:22how strong ants are?

01:11:24I mean, really strong.

01:11:26For example, Asian-type

01:11:28ants are able to carry

01:11:30objects that weigh about

01:11:32100 times their body weight.

01:11:34Considering their small size,

01:11:36carrying heavy objects is not so much

01:11:38a question of muscle strength.

01:11:40It's more of a good grip.

01:11:42Ants have self-cleaning

01:11:44adhesive cushions on their legs.

01:11:46This helps them vary the size

01:11:48of the contact surface on the ground.

01:11:50That's how they manage to stay

01:11:52balanced with their load,

01:11:54even when they move their head down.

01:11:56Our Moon is so brilliant

01:11:58that you can see the time on the Moon.

01:12:00In 1970,

01:12:02the chief astronomer of an American planetarium

01:12:04designed a watch

01:12:06for all lunar hikers.

01:12:08The watch measures time

01:12:10in something he called a lunaison.

01:12:12The lunaison is the period

01:12:14the Moon takes to rotate

01:12:16and rotate around our planet.

01:12:18Each lunaison lasts almost

01:12:2030 terrestrial days.

01:12:22Researchers use a special system

01:12:24called a lunar clock for the Moon.

01:12:26Sur ce, je pense qu'il est temps

01:12:28pour moi de partir. Au revoir.

01:12:32Strawberries are not considered

01:12:34to be babies, but rather fake fruits.

01:12:36And even multiple fruits.

01:12:38What we believe

01:12:40is that these tiny brown or white things

01:12:42on their surface are seeds.

01:12:44But they are actually individual fruits

01:12:46attached to the flesh of the strawberry.

01:12:48But how did we make this mistake so long ago?

01:12:50Well, it all started a hundred years ago,

01:12:52when we named the fruit for the first time.

01:12:54It was long before botanists

01:12:56were there to help

01:12:58rectify things.

01:13:00Sci-fi movies

01:13:02are often inspired by real space exploration.

01:13:04But there is one thing

01:13:06NASA has put in place

01:13:08according to a sci-fi movie.

01:13:10This 1929 movie,

01:13:12The Woman on the Moon,

01:13:14introduced a countdown,

01:13:16and the suspense was great.

01:13:18NASA found it useful

01:13:20and started using it in 1969.

01:13:22But it is also very practical.

01:13:24It allows the huge teams

01:13:26working on each launch

01:13:28to be perfectly synchronized

01:13:30until the last second.

01:13:32Here is an info that will make you look

01:13:34at the beautiful juicy apples differently

01:13:36the next time you go to the supermarket.

01:13:38Usually harvested between August and November,

01:13:40our apples are immediately covered with wax,

01:13:42then dried in the hot air,

01:13:44and then sent to a cold room.

01:13:46Before arriving at the supermarket,

01:13:48all sparkling, they were stored

01:13:50in the refrigerator for a month.

01:13:52I bet you won't make it.

01:13:54Try to snort while

01:13:56stuffing your nose.

01:13:58You can't hear anything, can you?

01:14:00If the air doesn't come out,

01:14:02no sound can come out either.

01:14:04The largest national park in the world,

01:14:06in Greenland,

01:14:08occupies an area of 970,000 square kilometers,

01:14:10twice the size of California.

01:14:12But although it is huge,

01:14:14it only has 40 permanent residents,

01:14:16which makes it

01:14:18one of the most isolated places

01:14:20on the planet.

01:14:22Do you have a bad breath?

01:14:24Generally, people use chewing gums

01:14:26to solve this problem,

01:14:28but other things are just as effective.

01:14:30Cucumber, for example,

01:14:32is an excellent natural solution,

01:14:34and even better.

01:14:36Its action is similar to that of chewing gums.

01:14:38It stimulates the production of saliva.

01:14:40But what differentiates it

01:14:42from other odor eliminators

01:14:44is its water retention.

01:14:46You might think that the Z

01:14:48is the last letter to be added to the alphabet.

01:14:50But in fact, it's the J.

01:14:52A long time ago, in 1524,

01:14:54an Italian grammarian

01:14:56was looking for a way to separate

01:14:58the letters I and J.

01:15:00Together, they formed a vowel.

01:15:02And the J was then used

01:15:04as a consonant that sounded like a Y.

01:15:06It was only in 1633

01:15:08that an English grammarist

01:15:10explained the correct use of the J,

01:15:12and it was added to the alphabet

01:15:14instead of the J we use today.

01:15:16The first vacuum cleaner

01:15:18was invented in 1901.

01:15:20It was the size of a camper van.

01:15:22It needed four people to operate it.

01:15:24A gasoline engine provided energy,

01:15:26but it also needed a horse to make it move.

01:15:28I imagine that in the end,

01:15:30it was mainly used to clean

01:15:32what the horse left behind.

01:15:34But we didn't have to wait long

01:15:36to see easier ways to clean the house.

01:15:38Because it was in 1910

01:15:40that the first hand vacuum cleaner was invented.

01:15:42If you want to kill like a pig,

01:15:44don't suck so much water.

01:15:46It's more like a compliment,

01:15:48because pigs don't sweat.

01:15:50Pigs are born bloody,

01:15:52and the only way for them

01:15:54to cool down a bit

01:15:56is to find a nice puddle of water

01:15:58or, even better, mud.

01:16:00Umbrellas were invented

01:16:02about 4,000 years ago,

01:16:04and according to the etiquette of the time,

01:16:06only women could use them.

01:16:08Their initial function

01:16:10was socially accepted,

01:16:12and the modern and waterproof version

01:16:14that we know today was made.

01:16:16More importantly,

01:16:18the very first dog umbrella

01:16:20was invented in 1965.

01:16:22Dentists can be very strict

01:16:24when it comes to the sweets you eat.

01:16:26You will probably be surprised

01:16:28to learn that the Barbapapa

01:16:30was invented by a dentist.

01:16:32John C. Wharton,

01:16:34a dentist and confessor of his state,

01:16:36wanted to be able to offer his clients

01:16:38a ride to space.

01:16:40Maybe it was to make sure

01:16:42that they would come back often.

01:16:44If we could build

01:16:46a highway to space

01:16:48and adjust the effects of gravity,

01:16:50it would only take you an hour

01:16:52to cross the atmosphere

01:16:54by driving at 100 km per hour.

01:16:56A project for you, perhaps,

01:16:58Elon Musk.

01:17:00What is the weight of a cloud?

01:17:02It seems very light to us.

01:17:04After all, we see them floating in the sky.

01:17:06They weigh 450 tons.

01:17:08If they can float above us,

01:17:10it's because the air is lighter up there

01:17:12and less dense down there.

01:17:14It's the same as when you observe

01:17:16oil floating on a mass of water.

01:17:18Do you think you're floating because you're bored

01:17:20or because you're tired?

01:17:22Well, know that it's a myth.

01:17:24If you float more often at the end of the day,

01:17:26it's simply to stay more alert.

01:17:28By inhaling fresh air

01:17:30and stretching your muscles,

01:17:32your body refreshes your brain.

01:17:34Researchers have even been able to identify

01:17:36the size of the brain of different species of animals

01:17:38depending on their growth.

01:17:40The bigger the brain, the longer the growth.

01:17:42So how long do you grow?

01:17:44Playing video games regularly

01:17:46increases your gray matter, dear gamer.

01:17:48This stimulates the connectivity of your brain

01:17:50and this thanks to muscle control,

01:17:52memory use, perception

01:17:54and spatial orientation.

01:17:56An experiment conducted in a New York medical center

01:17:58revealed that surgeons

01:18:00who played video games regularly

01:18:02made 20% less mistakes

01:18:04and operated 27% faster

01:18:06than non-gamers.

01:18:08Have you ever dreamed of being a little bit taller?

01:18:10Well, put on your space suit.

01:18:12The human body grows by about 3%

01:18:14in space.

01:18:16On Earth, our spine

01:18:18is compressed by gravity.

01:18:20But in weightlessness, decompression

01:18:22allows the vertebral discs to expand,

01:18:24which allows the spine to lengthen.

01:18:26Cows don't know

01:18:28when to sleep

01:18:30when they're up,

01:18:32but they can still take a nap.

01:18:34It's an evolutionary feature

01:18:36that allows their ancestors

01:18:38to avoid predators.

01:18:40They sleep standing up

01:18:42to escape quickly

01:18:44when danger approaches.

01:18:46But they only sleep when they're lying down.

01:18:48They only need 4 hours of sleep

01:18:50to recharge for the next day.

01:18:52Women have more taste buds

01:18:54than men,

01:18:56and 35% of women

01:18:58like to have pineapple on their pizza.

01:19:00Don't get mad if you don't agree.

01:19:02During your sleep,

01:19:04you are unable to sleep forever.

01:19:06It seems unbelievable,

01:19:08especially when you're drunk.

01:19:10But while your body is resting,

01:19:12the nerves that allow you to sleep forever

01:19:14are also resting.

01:19:16When you sleep, your brain ignores

01:19:18the irritating sensations

01:19:20and the eating that makes you sleep

01:19:22during the day.

01:19:24Once, our civil year

01:19:26only lasted 304 days.

01:19:28So there was still

01:19:30a bit of room for a new month.

01:19:32It was Julius Caesar

01:19:34who reformed the calendar

01:19:36in 46 BC.

01:19:38Before that,

01:19:40our calendar was based on the moon.

01:19:42But Julius Caesar saw a problem

01:19:44because it didn't match the seasons.

01:19:46So he hired an astronomer

01:19:48who created a calendar

01:19:50based on the sun.

01:19:52Pockets,

01:19:54Pockets are usually

01:19:56placed on the left side of the shirt

01:19:58because most people are right-handed.

01:20:00Is it a myth or a reality?

01:20:02It's a reality.

01:20:04Many products are made

01:20:06for right-handed people.

01:20:08Left-handed people know it.

01:20:10For example, in public transport.

01:20:12Have you ever noticed that the scanner

01:20:14that validates your transport title

01:20:16is usually on the right side?

01:20:18And it's the same for everyday objects

01:20:20and household appliances.

01:20:22The bottle opener and many other

01:20:24items of the same type

01:20:26are mainly designed for right-handed people.

01:20:28The same goes for

01:20:30shirt pockets.

01:20:32Although some people use both hands

01:20:34indifferently or change their preference

01:20:36according to the task to be accomplished,

01:20:38the vast majority of people are right-handed.

01:20:40According to a study,

01:20:4275 to 90% of the world's population

01:20:44would be right-handed

01:20:46and 10% only left-handed.

01:20:48This means that having a pocket

01:20:50on the right side is more practical

01:20:52for most people.

01:20:54Try it yourself.

01:20:56You have to make an effort to reach

01:20:58your pocket on the right side of your shirt.

01:21:00However, your gesture is quite natural

01:21:02when it comes to looking for something

01:21:04in your left pocket.

01:21:06Eating more protein

01:21:08allows you to have bigger muscles.

01:21:10What do you think?

01:21:12Myth or reality?

01:21:14It's a myth.

01:21:16It's true that eating protein

01:21:18is essential to have bigger muscles.

01:21:20Protein, in fact,

01:21:22are in a way the building blocks of your body.

01:21:24And yet, eating more

01:21:26than what you need

01:21:28is completely useless.

01:21:30Everyone should drink

01:21:328 glasses of water a day.

01:21:34Do you think it's a myth or a reality?

01:21:36It's a myth.

01:21:38So don't blame yourself for drinking less water

01:21:40than what is recommended.

01:21:428 glasses is not a magical number.

01:21:44The need for hydration

01:21:46and the amount of water you drink every day

01:21:48depend on your activity

01:21:50and your physical habits.

01:21:52The temperature of the place where you live

01:21:54also has an impact on your needs.

01:21:56If you live in a hot region,

01:21:58you sweat more,

01:22:00so you have to drink more water.

01:22:02Soup, coffee, tea, fruit

01:22:04and other daily foods

01:22:06also contain water.

01:22:08Carrots are rich in sugar,

01:22:10so you should avoid eating them.

01:22:12If it's true, we should warn rabbits.

01:22:14What do you think?

01:22:16Myth or reality?

01:22:18It's a myth.

01:22:20Carrots contain about 85% of water.

01:22:22Half a kilo of cooked carrots

01:22:24contains only 3 teaspoons of sugar.

01:22:26Compared to the amount of sugar

01:22:28contained in your favorite desserts,

01:22:30it's nothing.

01:22:32In addition, carrots are rich in phytochemicals

01:22:34and eating them can help reduce glycaemia.

01:22:36People of the Middle Ages

01:22:38believed that the earth was flat.

01:22:40Is it a myth or a reality?

01:22:42Obviously,

01:22:44the flat earth is a myth,

01:22:46but the story built around it is also a myth.

01:22:48We can't say that at that time

01:22:50the whole world doubted

01:22:52the spherical shape of the earth.

01:22:54It made the same observations

01:22:56that we make today.

01:22:58For example, people of the Middle Ages

01:23:00could see, just like us,

01:23:02that the sun's rays at sunrise and sunset

01:23:04form an arc above the horizon.

01:23:06Vikings wore helmets.

01:23:08Is it a myth or a reality?

01:23:10The image is well known.

01:23:12No Viking warrior without his horned helmet.

01:23:14But in reality,

01:23:16there were no horns on their helmets.

01:23:18We found no evidence of this.

01:23:20Detox juice purifies your body.

01:23:22Is it a reality or a myth?

01:23:24It's a myth.

01:23:26What is commonly called detox

01:23:28doesn't work like that.

01:23:30It's your internal organs

01:23:32that take charge of the cleaning process of your body.

01:23:34The rat, the liver, the kidneys,

01:23:36but especially the liver.

01:23:38Your body purifies itself

01:23:40permanently in a natural way.

01:23:42No one needs to drink juices

01:23:44to eliminate these toxins.

01:23:46Nuts are unhealthy.

01:23:48What do you think?

01:23:50Myth or reality?

01:23:52You're right, it's a myth.

01:23:54Nuts are full of healthy fats.

01:23:56They are excellent for your heart

01:23:58and your other organs.

01:24:00Americans throw, on average,

01:24:0238 kg of textile waste per year and per person.

01:24:04Is it a reality or a myth?

01:24:06It's a reality.

01:24:08Imagine all this waste.

01:24:10When a person throws his clothes away,

01:24:12they don't simply volatilize.

01:24:14All these articles are sent

01:24:16in huge discharges.

01:24:18Giving these clothes or reselling them

01:24:20in second-hand stores is much more ecological.

01:24:22You've probably already heard

01:24:24about these miraculous laundry tips

01:24:26supposed to make your clothes super clean

01:24:28and like new.

01:24:30What if these laundry tips were just myths?

01:24:32Here are three.

01:24:34Shirts must be buttoned

01:24:36when you put them in your machine.

01:24:38Is it true?

01:24:40It's a myth.

01:24:42It's better to keep the zipper closed

01:24:44so that their teeth don't stick to the fabric

01:24:46of your other clothes.

01:24:48But buttoning a shirt's buttons

01:24:50can dilate the buttonholes.

01:24:52In the long run, the buttons will start to slip

01:24:54and your shirt will be good to throw away.

01:24:56Washing your clothes in hot water

01:24:58is the best way to clean them.

01:25:00Is it a myth or a reality?

01:25:02It's still a myth.

01:25:04You want to get rid of microbes in your clothes.

01:25:06However, hot water alone

01:25:08won't be enough.

01:25:10Nowadays, many detergents are perfectly capable

01:25:12of cleaning our clothes

01:25:14in cold or warm water.

01:25:16You have to clean the stains

01:25:18on the outside of the fabric.

01:25:20Is it true?

01:25:22Most people apply water and soap

01:25:24directly on the stain,

01:25:26starting with the outside of the fabric.

01:25:28But that's not the best solution.

01:25:30The stain can sink deeper

01:25:32if you treat it from the outside.

01:25:34Try to bring the stain up to the surface

01:25:36instead of pushing it inwards.

01:25:38Listening to music

01:25:40is effective in learning a new language.

01:25:42Is it a myth or a reality?

01:25:44It's a reality.

01:25:46Scientists have declared

01:25:48that listening to a song

01:25:50and humming along

01:25:52can help us learn a language.

01:25:54Many people have trouble

01:25:56learning grammar rules.

01:25:58However, in our daily lives,

01:26:00we don't always follow them.

01:26:02Songs can help us

01:26:04memorize common expressions.

01:26:06Scientists have also claimed

01:26:08that music allows us to remember

01:26:10new words and enrich our vocabulary.

01:26:12Let me give you an example.

01:26:14Do you remember your first year of school?

01:26:16Yes, the alphabet song.

01:26:18Are you a morning person

01:26:20or a night bird?

01:26:22In any case, you need to be aware

01:26:24of the realities and myths

01:26:26surrounding sleep.

01:26:28A person managed to stay awake

01:26:30for 11 consecutive days.

01:26:32Do you think it's possible

01:26:34or is it an urban legend?

01:26:36It's a reality.

01:26:38Randy Gardner set the record

01:26:40for the longest sleep.

01:26:42It was a scientific experiment

01:26:44conducted by Dr. William C. Demond

01:26:46who studied sleep

01:26:48at Stanford University.

01:26:50This doctor recorded and monitored

01:26:52Randy Gardner's sleep activity

01:26:54and he managed to stay awake

01:26:56for 11 days and 25 minutes.

01:26:58Your body ends up getting used

01:27:00to less sleep.

01:27:02Myth or reality?

01:27:04It's a myth.

01:27:06Many studies show

01:27:08that your body,

01:27:10and your brain in particular,

01:27:12can't get used to less sleep.

01:27:14Did you notice that after a few nights

01:27:16of insufficient sleep,

01:27:18you started to feel more tired

01:27:20during the day?

01:27:22This is the result

01:27:24of a 2-hour work in a 3D laser

01:27:26and about 2 hours of work

01:27:28to make a tiny fidget spinner.

01:27:30It will be smaller than a hair strand.

01:27:32This is what researchers

01:27:34at Oak Ridge National Laboratory

01:27:36were able to achieve.

01:27:38In reality,

01:27:40double cream Oreos

01:27:42are not twice as stuffed.

01:27:44A math professor weighed

01:27:46ten classic Oreos,

01:27:48ten double cream Oreos

01:27:50Chipotles are not peppers of a particular variety, they are simply dried and smoked jalapenos.

01:27:59In a gas form, oxygen has no smell or color.

01:28:04But when it is liquid or solid, it is light blue.

01:28:09The stars caught by black holes are destroyed by their enormous force of gravity.

01:28:14Pieces of these stars are sucked by the black hole.

01:28:20The rest, in the form of plasma gas, is ejected with such force that it travels light years away.

01:28:29Recently, researchers have decided to redraw the genealogical tree of dinosaurs for the first time in 130 years.

01:28:37It would seem that two species of dinosaurs should have been grouped from the beginning.

01:28:42These are carnivorous dinosaurs with reptile basins, such as the T-Rex, and vegetarian dinosaurs with bird basins, such as the Stegosaurus.

01:28:50A camel can drink up to 113 liters of water in just over 10 minutes.

01:28:55This water is stored in the animal's blood system.

01:28:58As for its bone, it is a reserve of fat for periods of food deficiency.

01:29:03Some marine animals, such as salmon and turtles, use terrestrial magnetic fields to locate themselves.

01:29:11Your lungs are not just there to make you breathe.

01:29:14They also produce red blood cells.

01:29:16These are the cells responsible for coagulation.

01:29:20The lungs produce more than 10 million of these small cells per hour.

01:29:26There are only two letters that never appear on the periodic table.

01:29:29The J and the Q.

01:29:33If you shoot a bullet at yourself while you throw it, it will fly.

01:29:37This is the Magnus effect.

01:29:40You can notice this phenomenon in several sports, such as tennis or baseball.

01:29:47Anathedaophobia is the fear that at any time, somewhere in the world, a duck or a goat can observe the person suffering from the phobia.

01:29:54I'm watching you.

01:29:56The person is not necessarily afraid that the duck or the goat will approach or come into contact with the animal.

01:30:01It is just the fear of being observed.

01:30:05This phobia was described for the first time in a comic to show that everyone can be afraid of something.

01:30:11Everything can become a phobia.

01:30:13A duck that would constantly watch me would certainly give me chicken meat.

01:30:20Favorite fruit candies are shiny because they are probably covered with carnauba wax.

01:30:26This wax is sometimes used on fruits, such as apples.

01:30:30It makes candies and fruits shine, but also cars.

01:30:37Peaches and nectarines seem different, but in reality they are the same fruit.

01:30:43The very soft gene is dominant in peaches, while if it is not, you get smooth nectarines.

01:30:50Crows are gifted at recognizing people's faces, and they remember it for a long time.

01:30:55It can be a good or a bad thing, depending on your behavior with them.

01:30:59It is better not to meet a crow that has one after you.

01:31:02You probably don't know how to distinguish a crow from another crow, so it's better to say hello to everyone.

01:31:12In the city of Yoro, in Central America, fish rains fall every year.

01:31:19Residents have no choice.

01:31:21Every year, in May or June, a torrential rain crosses the city, leaving fish agonizing in the street.

01:31:30It would seem that the phenomenon is caused by water storms or tornadoes, which would transport the fish.

01:31:36Express delivery of seafood, oh yeah!

01:31:41A single sprig of spaghetti is called a spaghetto.

01:31:45A single sprig of spaghetti is called a spaghetto.

01:31:51In Italian, the I at the end of words marks the plural.

01:31:55And the O is a mark of the singular.

01:31:58It is valid for everything.

01:31:59We say gnocco for a single gnocchi,

01:32:02tortellino for a single tortellini,

01:32:05and raviolo for a single bite of this delight.

01:32:10Water can freeze and boil at the same time.

01:32:12It is called the triple point.

01:32:15It is the moment when a substance can be solid, liquid and gaseous at the same time.

01:32:20It is closely related to pressure and temperature.

01:32:25We are used to having a white ranch sauce.

01:32:28But in reality, producers generally add titanium dioxide to make it as white as our sunscreen.

01:32:34Ah, sunscreen producers also add titanium dioxide to their products.

01:32:39It is also valid for Caesar sauce and blue cheese sauce.

01:32:43Our moon had an atmosphere.

01:32:46About 4 billion years ago, volcanic eruptions occurred on our satellite.

01:32:51They released huge volumes of gas, thousands of billions of tons.

01:32:56Volumes too large to escape into space.

01:32:59This is how this atmosphere was formed.

01:33:03Cold water heats up faster than hot water.

01:33:06The speed of this process depends on the temperature difference between the liquid and its environment.

01:33:11This is why cold water needs less time to absorb heat.

01:33:15But that doesn't mean it will boil faster than hot water.

01:33:19Zealandia is a continental block submerged in the Pacific Ocean.

01:33:23It is often described as a fragment or a microcontinent.

01:33:27It measures almost 2 million square meters,

01:33:30which is half of the United States.

01:33:33It was submerged about 23 million years ago.

01:33:37New Zealand is the largest part of Zealandia still on the surface.

01:33:42Human beings are still evolving.

01:33:45Researchers have found several million human anomalies.

01:33:48It turns out that some dangerous genes are gradually eliminated from DNA.

01:33:56Stars twinkle because of turbulence in the Earth's atmosphere.

01:34:00It deflects the light from the stars before it reaches your eyes.

01:34:04It gives this sparkling effect.

01:34:09Water goes around the world in a thousand years.

01:34:14This phenomenon is called the thermohaline loop.

01:34:20Bismuth is a white and fragile metal with a pink hue.

01:34:24If you melt it and let it cool very slowly,

01:34:27it forms iridescent cubic crystals.

01:34:29Skittles and M&M's are colored with...

01:34:32...choleopteres.

01:34:34The red food coloring is made from carmine from cochineal.

01:34:38Red lipstick is also made from cochineal.

01:34:43Stones, metals and other minerals that make up the Earth

01:34:47are not distributed homogeneously on the planet.

01:34:52This has several consequences,

01:34:54including the variation of gravity depending on where you are.

01:34:58Altitude also has an effect.

01:35:01When you are at the top of Mount Everest, you weigh slightly less.

01:35:04Don't look down!

01:35:07According to a researcher, there was a substance in the ancient microbes

01:35:11before the evolution of chlorophyll.

01:35:14It is the substance that makes plants green on Earth.

01:35:17This substance reflected sunlight in red and purple,

01:35:20which gave a bright purple.

01:35:22If this hypothesis was true,

01:35:25the Earth would have been full of purple animals before the arrival of greenery.

01:35:30Apples have a better taste when they are cut,

01:35:33because they are exposed to oxygen.

01:35:36Oxygen activates an enzyme called polyphenoloxidase,

01:35:39responsible for the maturation and browning of the fruit.

01:35:42This phenomenon also occurs when you hit an apple.

01:35:45Oxygen enters through the small cracks caused by the impact

01:35:48and the fruit begins to ripen.

01:35:50Do you like white chocolate?

01:35:53In fact, it is not chocolate at all.

01:35:56It is a mixture of sugar, milk, vanilla and cocoa butter.

01:35:59Cocoa butter is not enough to make chocolate.

01:36:02It lacks powder or chocolate liqueur.

01:36:06The only product that never perishes,

01:36:09even if it is not stored in the fridge, is honey.

01:36:12It has a low pH and contains a lot of sugar.

01:36:15Bacteria that cause food deterioration do not survive in honey.

01:36:18If two pieces of metal touch each other in space,

01:36:21they come together and fuse.

01:36:24This does not happen on Earth, because water and air separate food.

01:36:29People will be more honest when they are tired.

01:36:32It is assumed that this is why confessions are usually made late at night.

01:36:37Firefighters extinguish fires with wet water.

01:36:40This is water mixed with wet agents.

01:36:42It is chemical products that help water to soak objects

01:36:45and spread more easily.

01:36:49The sun is a medium-sized star.

01:36:52However, it is 1,300,000 times the size of the Earth

01:36:55and weighs 333,000 times more.

01:37:02We have been able to dictate our e-mails in Morse since 2004.

01:37:06This date corresponds to the date of codification of the symbol at the base.

01:37:08The base is also called comat, for commercial A,

01:37:11and corresponds to the letters A and C combined.

01:37:18Barely two decades ago,

01:37:21no one could have imagined that a key containing hundreds of gigabytes

01:37:24could hold in our pocket.

01:37:27We are now used to transferring files by USB from one device to another.

01:37:30In 2000, there were mainly two types of keys.

01:37:33The first was a USB key,

01:37:35which quickly became USB 2.0,

01:37:38USB 3.0, USB Type-C, and so on.

01:37:41They are very resistant,

01:37:44especially when they are properly protected.

01:37:47The design of these devices is almost perfect.

01:37:50So perfect that you always insert them in the wrong direction.

01:37:53Admit it!

01:37:56The two square holes are there to fix the key

01:37:59when it is necessary.

01:38:01It does not completely get stuck, but it holds.

01:38:04You can protect your USB key with an appropriate encryption.

01:38:07If someone steals it from you, he will not be able to read it.

01:38:10Encrypted files will turn into an incomprehensible mixture

01:38:13of letters and numbers that no one will be able to decipher.

01:38:16This only works in the event of a theft of a USB key.

01:38:19If you use online services,

01:38:22such as messaging or e-mail,

01:38:25you will not be able to read it.

01:38:27Of course, your interlocutor will not be able to read your files,

01:38:30but the host site will be able to read them.

01:38:33This is when the encryption from end to end comes into play.

01:38:36This means that all incoming and outgoing information

01:38:39is once again transformed into charabia

01:38:42for all those who participate in the exchange, host included.

01:38:45Online storage has revolutionized the world.

01:38:48You can now store your USB key in your home.

01:38:51You can now store your USB key in your home.

01:38:54You can now store your USB key in your home.

01:38:57You can now save everything on your desktop

01:39:00and access these files from various devices.

01:39:03All you need is an e-mail and a password

01:39:06and poof, you're saved

01:39:09and you can keep all your files in one place.

01:39:12These are not fluctuating data on clouds,

01:39:15but simply servers that physically store data.

01:39:18They look like ordinary computers,

01:39:21but without the screen for visualization.

01:39:24Maintaining these servers is very expensive.

01:39:27are usually paid for their services.

01:39:29They are placed in data centers

01:39:31all over the world,

01:39:33and they are managed by third-party companies.

01:39:35It's like remote access

01:39:37to a computer.

01:39:39Servers are provided by a master server,

01:39:41a backup server,

01:39:43and several connected servers

01:39:45that ensure the quality of the service.

01:39:47The more you pay, the better the server

01:39:49that manages your data will be.

01:39:51In the world of computers,

01:39:53it is impossible to permanently

01:39:55erase something.

01:39:57Any file you want to erase

01:39:59is present in the hard drive

01:40:01in the form of an electrical impulse.

01:40:03Depending on your device,

01:40:05the file will be moved in a bin.

01:40:07This does not mean that it no longer exists.

01:40:09It just means that it has been moved

01:40:11to a different file

01:40:13and that you can easily recover it.

01:40:15So if you are afraid of erasing by mistake

01:40:17an essential file on which

01:40:19you have been working for weeks,

01:40:21don't worry.

01:40:23It will be completely erased.

01:40:25But if your device breaks down,

01:40:27the data is lost.

01:40:29If you have a device that works

01:40:31with Windows 10,

01:40:33you probably turn off your computer

01:40:35thinking that it is totally disabled.

01:40:37This is not the case.

01:40:39Windows 10 does not completely turn off,

01:40:41but it hibernates.

01:40:43It remains active

01:40:45and restores the pages when you turn it on.

01:40:47The only way to turn it off

01:40:49is to re-initialize it.

01:40:51Windows 10 is known

01:40:53to be easy to use.

01:40:55All commands are immediately visible.

01:40:57But IT magicians know

01:40:59that you just have to type

01:41:01CMD in the search bar

01:41:03to open the command invite.

01:41:05It looks like a random character character,

01:41:07but this is where you can do

01:41:09a lot of things with your device.

01:41:11If you don't like the black window,

01:41:13you can always choose a color of your choice.

01:41:15Once the command invite is launched,

01:41:17right-click on the title bar

01:41:19then click on Properties.

01:41:21Another window will open

01:41:23on which you will see the option

01:41:25of the color choice.

01:41:27You can choose any color for the background

01:41:29and for the text,

01:41:31and you can adjust the opacity of the window.

01:41:33That's easy.

01:41:35It's more complicated when you want to type commands.

01:41:37If you want to consult all the pilots

01:41:39present on your Windows 10 computer,

01:41:41you can type this command.

01:41:43Don't forget the spaces.

01:41:45The list of your pilots

01:41:47will appear on your screen as if by magic.

01:41:49It's a good way to quickly

01:41:51solve problems instead of

01:41:53looking for them manually.

01:41:55You can also hide certain files

01:41:57in your computer by using the command invite

01:41:59and by typing

01:42:01attribute plus h plus s

01:42:03plus r space folder

01:42:05underscore name

01:42:07before typing on Enter.

01:42:09You insert the file name you want to hide

01:42:11and poof, it disappears.

01:42:13There is a less professional way to do it.

01:42:15Click on the properties of the file

01:42:17and check the hidden box.

01:42:19It's a quick technique

01:42:21to hide your files,

01:42:23but not very effective.

01:42:25If you click on display hidden files,

01:42:27everything will become visible again.

01:42:29The command invite is not only used to work.

01:42:31You can also play games on it

01:42:33to pass the time.

01:42:35Don't expect an ultra-realistic

01:42:37triple-A game and epic gameplay.

01:42:39Type this command

01:42:41and you will find yourself in a role-playing game

01:42:43based on text,

01:42:45in which you can create a character

01:42:47and move around in his world.

01:42:49Google Chrome is one of the most

01:42:51well-known search engines.

01:42:53You can also play a game

01:42:55like in the command invite.

01:42:57Click on control plus

01:42:59mage plus j to open the console.

01:43:01Then type

01:43:03textadventure in the search bar.

01:43:05Don't panic.

01:43:07You just opened a kind of

01:43:09back-end of the page.

01:43:11A text will appear

01:43:13asking you if you want to play a game.

01:43:15Click on yes

01:43:17and here you go.

01:43:19You will receive basic information

01:43:21about the basic commands

01:43:23and an introduction to the adventure.

01:43:25If you want to play something more contemporary,

01:43:27you can play alone.

01:43:29No need to type weird commands to play.

01:43:31Just type alone

01:43:33in the search bar and that's it.

01:43:35You can thus

01:43:37give yourself a lonely devil

01:43:39in your search engine.

01:43:41And if you get bored,

01:43:43you can play Pac-Man,

01:43:45a great classic.

01:43:47If you are part of the 3310 generation,

01:43:49this game will remind you

01:43:51of your childhood.

01:43:53Type snake in Google

01:43:55and here you go.

01:43:57When the Internet doesn't work,

01:43:59you can play with the dinosaur

01:44:01in your search engine

01:44:03while you wait for your Wi-Fi to revive.

01:44:05It's a super simple game.

01:44:07There is enough space to avoid obstacles.

01:44:09After a while,

01:44:11you will also be able to crouch.

01:44:13It will complicate things.

01:44:15And there you go,

01:44:17you can have fun even without Wi-Fi.

01:44:19You can pause the game whenever you want

01:44:21by pressing ALT or F11.

01:44:23Just click anywhere on the screen

01:44:25to continue playing.

01:44:27Windows 11 has very cool

01:44:29hidden features that are very useful.

01:44:31For example,

01:44:33you can adjust the volume

01:44:35separately.

01:44:37Click on Settings and then on System

01:44:39then click on Sound.

01:44:41You will have access to all the volumes

01:44:43as well as the main volume.

01:44:45Copying and pasting is essential

01:44:47to our daily use of the computer.

01:44:49Windows 11 has taken this feature

01:44:51very seriously

01:44:53and has created Clipboard History.

01:44:55This option allows you to save

01:44:57the copied text in a dedicated location

01:44:59that you can consult anytime.

01:45:01The good news is

01:45:03that it also works on Windows 10.

01:45:05Click on Windows

01:45:07plus V and there you go.

01:45:09If you have too many windows open

01:45:11on Windows 11,

01:45:13you can simply select the window

01:45:15that interests you and shake it.

01:45:17It will reduce all the other windows

01:45:19and there you go, your screen will be tidy.

01:45:21Watch out, I'm shaking!

01:45:23Have you ever vibrated in your room

01:45:25listening to some of your favorite songs

01:45:27and admiring the bass sound

01:45:29of your speaker

01:45:31while it revives your speakers

01:45:33at high decibels?

01:45:35And have you ever wondered

01:45:37why this same speaker

01:45:39as well as so many other speakers

01:45:41around the world are almost always black?

01:45:43Some of you are probably

01:45:45screaming on their screens

01:45:47right now to say that their speakers

01:45:49are green, red or any other color

01:45:51of the rainbow.

01:45:53First of all, we said almost always

01:45:55and then if you look closely

01:45:57at the magnificent design

01:45:59you will see that the speaker

01:46:01below is still black.

01:46:03A possible explanation for this

01:46:05is that the original technology

01:46:07had a diaphragm with black particles on it.

01:46:09So as soon as a sound is amplified,

01:46:11it sends a charge through the diaphragm

01:46:13and these black particles are pushed up.

01:46:15The carbon particles

01:46:17that bounce and touch

01:46:19the upper membrane of the diaphragm

01:46:21are responsible for the creation

01:46:23of some of the distinct sounds

01:46:25of our speakers that we love so much.

01:46:27Most speakers must have had enough

01:46:29to see their products change color

01:46:31in case of prolonged use

01:46:33and to see these black particles

01:46:35settle on the upper membrane of the diaphragm.

01:46:37Their logical solution

01:46:39was to color most speakers black.

01:46:43Another more practical reason

01:46:45why speakers are most often colored black

01:46:47is that it is a color that fits easily

01:46:49with many types of decor.

01:46:51Walls, furniture and clothes

01:46:53are often raised

01:46:55to match this color.

01:46:57This is why it is so widespread.

01:46:59According to several studies,

01:47:01listening to music has been ranked

01:47:03several times in the top 10

01:47:05of our favorite pastimes around the world.

01:47:07Nowadays,

01:47:09we find speakers everywhere.

01:47:11In your television, your laptop

01:47:13and your phone.

01:47:15You can't escape them,

01:47:17but let's take a look at how it all started.

01:47:19Their origins lie in radio

01:47:21and telephone technology.

01:47:23The first form of loudspeaker

01:47:25was developed by Johann Philipp Reiss

01:47:27in 1861.

01:47:29This German inventor

01:47:31installed the loudspeaker on his phone.

01:47:33He was just able to reproduce

01:47:35clear tones,

01:47:37but he could also reproduce

01:47:39muffled words after a few revisions.

01:47:41Alexander Graham Bell,

01:47:43the inventor of the telephone,

01:47:45decided to try to produce an improved version

01:47:47of Reiss's loudspeaker.

01:47:49Basically, Bell and other inventors

01:47:51wanted to create an electro-dynamic loudspeaker.

01:47:53In 1877,

01:47:55it still didn't exist,

01:47:57but thanks to the desire of inventors

01:47:59from all over the world to change it,

01:48:01research has confirmed

01:48:03that it was quite possible

01:48:05to make one.

01:48:07In particular,

01:48:09the work of Werner von Siemens,

01:48:11who had the idea

01:48:13of a coiled electromagnetic loudspeaker,

01:48:15was a driving force

01:48:17to come to this conclusion.

01:48:19The coil is powered by an electric current,

01:48:21which the inventors we mentioned

01:48:23would simply never have considered

01:48:25as acquired.

01:48:27When this electric current changes,

01:48:29it produces a magnetic field.

01:48:31To move the panel of the speaker,

01:48:33magnets are used to create

01:48:35an opposite magnetic field

01:48:37that creates vibrations.

01:48:39These vibrations are the sound

01:48:41we end up hearing.

01:48:43The bigger the magnet,

01:48:45the louder the loudspeaker will be.

01:48:47Siemens had filed a patent

01:48:49in the United Kingdom for a system

01:48:51using compressed air

01:48:53in an amplification mechanism.

01:48:55The first commercial electric loudspeaker

01:48:57was born in 1924.

01:48:59The sound quality produced

01:49:01by this loudspeaker

01:49:03was good enough for the cinema.

01:49:05It took nearly 20 years

01:49:07to witness the next breakthrough

01:49:09in the world of loudspeakers.

01:49:11This happened with the arrival

01:49:13of the Duplex Driver in 1943.

01:49:15It offered greater clarity

01:49:17and better coherence

01:49:19in high volumes,

01:49:21which was important

01:49:23in movie theaters.

01:49:25That's why it was nicknamed

01:49:27the Voice of Cinema.

01:49:29The Duplex Driver was immediately

01:49:31tested by the Academy of Arts

01:49:33and Sciences of Cinema

01:49:35and became the norm

01:49:37of the film industry in 1955.

01:49:39This concept of loudspeaker

01:49:41is still used today.

01:49:43The Duplex Driver was

01:49:45designed for its acoustics,

01:49:47just like the rooms

01:49:49in which we see the movies.

01:49:51You may have noticed

01:49:53that these rooms

01:49:55are often thick curtains

01:49:57on the walls.

01:49:59These are soundproof

01:50:01or acoustic curtains

01:50:03and they are much thicker

01:50:05than standard curtains.

01:50:07They are made of heavier

01:50:09and tighter fabric

01:50:11which creates a much better

01:50:13sound experience.

01:50:15That's why the curtains

01:50:17are so thick in the movies.

01:50:19They help to trap the sound

01:50:21by providing an isolation

01:50:23from a practical point of view.

01:50:25This curtain is also there

01:50:27to prevent footsteps

01:50:29during the projection of the movies.

01:50:31This concept of sound trap

01:50:33is also the reason why

01:50:35putting a phone in a cup

01:50:37will make the sound appear louder.

01:50:39The sound is projected in all directions.

01:50:41When the loudspeaker vibrates

01:50:43to create sound waves,

01:50:45an equal amount of energy

01:50:47goes from the front and the back.

01:50:49By placing a loudspeaker

01:50:51in a form of speaker,

01:50:53we can redirect some of the energy

01:50:55coming from the back of the loudspeaker

01:50:57and project it forward.

01:50:59By placing the speaker in a cup,

01:51:01you redirect the sound more effectively.

01:51:03It only travels in one direction

01:51:05which makes it sound louder

01:51:07Speaking of phones and loudspeakers,

01:51:09have you ever wondered why

01:51:11your mobile phone generates a noise

01:51:13in your loudspeaker?

01:51:15It can happen when the two gadgets

01:51:17are close to each other

01:51:19and your phone tries to send

01:51:21and receive data.

01:51:23The transfer of information

01:51:25produces electromagnetic disturbances

01:51:27in the environment of the loudspeakers.

01:51:29It creates noise in the audio

01:51:31and therefore you can hear

01:51:33the noise coming from your speakers.

01:51:35But avoid this annoying noise

01:51:37by simply moving your phone

01:51:39away from your loudspeaker

01:51:41or vice versa.

01:51:43This will eliminate what we call

01:51:45electromagnetic interference.

01:51:47Research conducted in the United States

01:51:49showed that on average

01:51:5174% of people owned

01:51:53at least two pairs of headphones

01:51:55or two audio headphones.

01:51:5746% of them mentioned

01:51:59that they used their headphones

01:52:01more than two hours a day.

01:52:03Some people choose their headphones

01:52:05or their headphones

01:52:07depending on their appearance,

01:52:09others depending on the quality of the sound.

01:52:11In both cases, finding the right gadget

01:52:13is important because many people

01:52:15are ready to devote more than

01:52:17a hundred euros to it.

01:52:19Headphones and other headphones

01:52:21have become real fashion accessories.

01:52:23This is why well-known personalities

01:52:25try to have an impact on this industry

01:52:27as if it were the fashion one.

01:52:29Music maniacs Dr. Dre and Jimmy Yovine

01:52:31have finally discovered the Beats by Dre headphones.

01:52:35Linda is an intern at a dental clinic.

01:52:37She heads to her car

01:52:39with a coffee in one hand

01:52:41and a handbag in the other.

01:52:43She takes out the keys

01:52:45but she drops them.

01:52:47She puts the bag on the roof of the car,

01:52:49picks up the keys,

01:52:51opens the door,

01:52:53starts the engine and leaves.

01:52:55She stops on the road

01:52:57and realizes that she left her bag on the roof.

01:52:59Linda stops,

01:53:01gets out and looks behind her.

01:53:03Her bag is on the ground.

01:53:05Linda tries to get closer

01:53:07but a truck crashes the bag.

01:53:09Her beauty products,

01:53:11a mobile phone,

01:53:13a book and everything else

01:53:15are flattened and broken.

01:53:17Linda takes out a curved toothpaste tube

01:53:19and crushes it.

01:53:21She applies the product on her hand.

01:53:23How is this possible?

01:53:25There should be total chaos inside the tube

01:53:27These three colored strips are not mixed.

01:53:29They are parallel to each other

01:53:31and have the same thickness.

01:53:33Linda decides to discover

01:53:35how this works.

01:53:37She goes home and puts the toothpaste in the freezer.

01:53:41After a few hours,

01:53:43she takes out the tube and cuts it in half.

01:53:47She sees a frozen substance

01:53:49of three colors inside.

01:53:51It seems that they put the toothpaste in the tube

01:53:53in this way, with three strips.

01:53:55When she places the tube,

01:53:57the paste comes out evenly.

01:53:59But why don't these colors

01:54:01mix inside?

01:54:03Linda discovers that there is a science

01:54:05that studies the deformation

01:54:07and flow of substances

01:54:09in a liquid, gaseous and solid state.

01:54:11It is called rheology.

01:54:13They use this science

01:54:15to create the viscosity and density

01:54:17necessary for toothpaste

01:54:19to prevent it from mixing

01:54:21inside the tube

01:54:23The manufacturers introduce

01:54:25the toothpaste in the tube

01:54:27from behind with a special machine.

01:54:29The different strips inside the tube

01:54:31have the same rheology.

01:54:33Under different pressures,

01:54:35they maintain the same thickness

01:54:37and the same flow.

01:54:39At rest, inside the tube,

01:54:41these strips have a more voluminous shape.

01:54:43But when pressed,

01:54:45they sharpen as the nozzle approaches.

01:54:47They are released at the same speed

01:54:49and with the same consistency

01:54:51The toothpaste retains its thickness

01:54:53after being pressed.

01:54:55It is like a marshmallow

01:54:57that regains its shape after being crushed.

01:54:59Some dental care companies

01:55:01equip their products with a small cylinder

01:55:03connected to the nozzle

01:55:05inside the tube.

01:55:07They fill it with white paste

01:55:09and put a small amount of two colored gels

01:55:11on the sides of the cylinder.

01:55:13When you press the toothpaste,

01:55:15it passes through the two sides of the cylinder

01:55:17and pushes the colored gel

01:55:19out of the container.

01:55:21Then, everything comes out of the nozzle

01:55:23in the form of three strips.

01:55:25There are many different

01:55:27types of toothpaste.

01:55:29It can be three strips

01:55:31or just one color.

01:55:33But white, red and blue

01:55:35are the classics.

01:55:37The white strip is responsible

01:55:39for whitening the teeth

01:55:41and removing dirt.

01:55:43It is an essential function of the toothpaste.

01:55:45That is why there are many white products.

01:55:47The blue strip is responsible

01:55:49for fresh toothpaste

01:55:51and protection against germs.

01:55:53The red color protects and strengthens the gums.

01:55:55It is not a strict rule

01:55:57and companies can modify

01:55:59the functions of the strips as they wish.

01:56:01Linda is a little confused

01:56:03by all this knowledge,

01:56:05but she seems to understand everything.

01:56:07She presses the toothpaste

01:56:09on the brush and thinks about

01:56:11why this brush is exactly this length

01:56:13and why the toothpaste

01:56:15should be used entirely.

01:56:17Brushes have various shapes,

01:56:19but their proportions are generally

01:56:21created specifically to ensure

01:56:23a comfortable cleaning.

01:56:25So here is a little secret

01:56:27about the amount of toothpaste.

01:56:29It is not necessary to cover

01:56:31the entire brush.

01:56:33The size of a small fist

01:56:35is enough to clean your teeth.

01:56:37Companies want you to spend

01:56:39your toothpaste quickly

01:56:41so that you buy a new one

01:56:43toothpaste, dentists,

01:56:45dental prostheses,

01:56:47so many different ways

01:56:49to treat and treat teeth.

01:56:51She can imagine the difficulties

01:56:53that people met a long time ago

01:56:55before dental technology was invented.

01:56:57We might think that they all

01:56:59had serious teeth problems

01:57:01and that they suffered from it,

01:57:03but in fact it was not the case.

01:57:05Even cavemen had much better teeth

01:57:07than the ones we have today.

01:57:09Archaeologists have found proof of this.

01:57:11This is a perfect row

01:57:13of toothless teeth.

01:57:15Linda does not regret it.

01:57:17She looks at her electronic toothbrush.

01:57:19Hmm, these ancient civilizations

01:57:21must have had secret technologies

01:57:23that we do not know about.

01:57:25But there was no dental care technology.

01:57:27To understand how they managed

01:57:29to keep their teeth so healthy,

01:57:31you must first understand

01:57:33what a tooth is.

01:57:35Inside, it is made up of dentine,

01:57:37a flexible but durable substance.

01:57:41The outer part

01:57:43is covered with the most

01:57:45solid material in the human body, enamel.

01:57:47It is made up of calcium

01:57:49and covers each tooth.

01:57:51And it is not just a solid shield.

01:57:53Enamel is made up of hundreds of thousands

01:57:55of thin fibers called prisms.

01:57:57A prism is fragile,

01:57:59but a set of a million prisms

01:58:01can be as hard as a diamond.

01:58:03Prisms are closely linked

01:58:05to each other, like a rope,

01:58:07and form an ideal dental structure.

01:58:09This is why teeth are a perfect tool

01:58:11for survival.

01:58:13Imagine a caveman eating meat and vegetables.

01:58:15This food is different from steak

01:58:17and salad in a restaurant.

01:58:19At the time, the food was quite dense

01:58:21and solid. To chew it,

01:58:23you had to have really solid jaws

01:58:25and teeth.

01:58:27Each meal was a real exercise.

01:58:29During chewing, the fibers

01:58:31of meat and vegetables cleaned

01:58:33the teeth of dirt and dental plaque.

01:58:35People had solid gums

01:58:37and did not know cavities.

01:58:39Their teeth were virtually invulnerable.

01:58:41A long time later,

01:58:43we began to use this excellent

01:58:45survival tool to chew soft bread,

01:58:47hamburgers, soft pasta

01:58:49and omelets.

01:58:51Teeth no longer receive the load

01:58:53for which they were created.

01:58:55This is why they have become weak.

01:58:57Humanity is faced with a regime

01:58:59that has never existed in the history

01:59:01of our planet.

01:59:03Too little time has passed between the time

01:59:05they chewed and the moment

01:59:07they began to order ultra-tender

01:59:09meatballs in a restaurant.

01:59:11In other words, tenderness

01:59:13took over the most solid material

01:59:15of the human body.

01:59:17Yes, teeth have become weaker,

01:59:19but another serious problem has appeared.

01:59:21Sugar.

01:59:23Caries appeared when they brought

01:59:25sugar to Europe.

01:59:27This snack became popular

01:59:29at a glance. It was added to food

01:59:31and was eaten in cubes, like candy.

01:59:33Sugar was considered a prestigious

01:59:35and expensive thing.

01:59:37Of course, no one knew that this product

01:59:39could cause dental caries.

01:59:41When this problem appeared,

01:59:43people began to create new dental technologies.

01:59:45There are other destroyers

01:59:47than sugar.

01:59:49Your mouth contains a lot of bacteria.

01:59:51Most of them help to digest food,

01:59:53to get rid of bad microbes

01:59:55and to clean the teeth of the dental plaque.

01:59:57But there are also harmful germs

01:59:59that destroy the structure of the teeth

02:00:01and form caries.

02:00:03In the past, when food was more natural

02:00:05and coarse, these microbes

02:00:07were not dangerous for solid teeth.

02:00:09Today, we eat foods

02:00:11rich in glycides,

02:00:13aromas, various additives and sugar.

02:00:15We help harmful bacteria

02:00:17to multiply, which makes them

02:00:19stronger.

02:00:21The way of life also affects the health of the teeth.

02:00:23In the past, people had to go

02:00:25looking for their food in the fields,

02:00:27forests and mountains.

02:00:29This was an active way of life

02:00:31and burned a lot of calories.

02:00:33No one really works like that today.

02:00:35It is much easier to train in a gym

02:00:37than to try to catch a mammoth.

02:00:39The lack of activity

02:00:41provides too many calories.

02:00:43The extra calories and germs

02:00:45cause stomach problems.

02:00:47The gases and acids in the intestine

02:00:49enter the mouth cavity

02:00:51and also destroy the teeth.

02:00:53Now, just look at these guys

02:00:55to compare.

02:00:57Lions, bears, tigers, cows

02:00:59and other animals with teeth

02:01:01always eat in the same way

02:01:03as millions of years ago.

02:01:05That's why they never have

02:01:07dental problems.

02:01:09Many indigenous tribes living far from civilization

02:01:11also have perfect teeth.

02:01:13Linda realizes

02:01:15that all this is true.

02:01:17So, what should we do with all this?

02:01:19Move to a remote island and eat bananas?

02:01:21No, don't worry,

02:01:23it's not that bad after all.

02:01:25All you have to do is eat less sugar,

02:01:27brush your teeth twice a day,

02:01:29go to the dentist regularly

02:01:31and everything will be fine.

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