25 Illusions que Vous Devrez Absolument Voir et Revoir Pour les Comprendre

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00:00 Hi everyone!

00:02 Today you're going to realize that you can't trust your eyes,

00:05 because they might be wrong several times.

00:07 Sculptures of people disappearing,

00:09 from a paper dragon that doesn't let you go,

00:11 to balls going up a hill.

00:13 Get ready to be blown away by these optical illusions.

00:16 Let's go!

00:18 But what a mess!

00:23 It's a bunch of dots and their placement doesn't make any sense.

00:25 In this kind of art, the author's idea is only revealed

00:27 if we look at the creation from a certain angle.

00:29 Besides, dots are not the only element used in this goal.

00:33 Here for example, we can see the silhouette of an athlete

00:39 wearing a variety of gold suspenders.

00:41 Or the number 24 of the basketball player Kobe Bryant,

00:45 who died in a plane crash,

00:47 created from his pictures on the field.

00:49 Now, let's do a little exercise for the brain.

00:52 Can you guess how many seeds are wrong in this video?

00:55 Let's go!

00:57 [Music]

01:01 You certainly didn't expect the one above to be wrong, did you?

01:04 Well, you can certainly face this one.

01:09 We'll give you a few seconds.

01:11 [Music]

01:16 Don't tell us you thought these pencils were paint.

01:18 [Music]

01:22 Ok, one last try. Look carefully.

01:24 [Music]

01:29 Don't get mad if you still haven't found the right answer.

01:31 It was hard.

01:33 This genius even painted his own reflection in the ball.

01:35 Do you think there is an ad you would like to watch countless times?

01:40 Frankly, we have a hard time believing it.

01:42 But Honda has managed to create such an ad.

01:44 It has so many optical illusions

01:46 that even if you watch it five times in a row,

01:48 you will have a hard time understanding how it works.

01:53 You can trust us because you will be surprised by the end of this video.

01:57 Everything seems quite simple at first.

01:59 It's about painting a mouth on a hand.

02:01 Then we add brown spots similar to the color of a giraffe.

02:03 Then this artist paints the same ornament on his face.

02:09 And it turns into an illusion that could haunt your wildest nightmares.

02:12 [Music]

02:24 Watch this video carefully.

02:26 What do you see here?

02:28 We could think it's a chair,

02:30 but a man approaches it and...

02:32 the chair turns out to be not as banal as it looks.

02:34 These unusual illusions are created by the French artist Benoit Convert.

02:37 The latter seems to really know how to disconcert the human brain.

02:40 Wow!

02:41 It looks like this car has been abandoned in a warehouse for a very long time.

02:44 So long that it has been covered with multicolored graffiti.

02:47 Wait a minute.

02:48 In fact, it's not a train at all,

02:50 but a small house that experienced street artists have transformed

02:53 to make a first-class optical illusion.

02:55 It seems that you just have to push a pointed object into its balls

03:01 to immediately lose its shape.

03:03 But this is still a super-trick.

03:05 3D graffiti specialists are able to come up with all kinds of tricks.

03:08 [Music]

03:12 This infographic masterpiece perfectly illustrates the feeling

03:15 when you eat sour candy.

03:17 This video could be broadcast on television

03:19 to promote regular teeth brushing.

03:22 These exceptional sculptures are made with the help of many very thin steel plates

03:26 connected to each other.

03:27 When you look at them from the right angle,

03:29 these objects seem translucent.

03:31 But if you change your position, the sculpture also changes.

03:34 [Music]

03:42 Come on, it's just impossible to believe that these glasses are not real.

03:45 However, if you look at how they were created,

03:47 it will be easier to convince you.

03:49 The secret is to cut the pieces of paper at the end.

03:52 And there, you can fool anyone.

03:54 [Music]

03:56 Another flawless optical illusion.

03:58 Look at how it was created.

04:00 It seems that everything is extremely simple,

04:02 and it seems that you will not be able to do the same thing again.

04:04 [Music]

04:11 You want to bite into this watermelon, I admit.

04:13 The secret lies in the perfect mastery of dark light and perspective.

04:17 And of course, in this delicate cutting of paper.

04:20 To create the most spectacular optical illusions,

04:23 you have to be a mathematician.

04:24 And the Japanese, Kokichi Sugihara, is proof of this.

04:27 Just look at the chair he made,

04:29 which is not a chair at all,

04:31 but an alien piece of furniture with strange feet.

04:33 Or an object with a square outline, which in the mirror looks like a cylinder.

04:36 And vice versa.

04:38 [Music]

04:43 Do you think it's just another boring ad for a watch?

04:45 Not quite.

04:46 Your brain has still played tricks on you.

04:48 It is actually a gigantic installation,

04:50 composed of several layers,

04:51 which does not have the same appearance seen from the side and from the front.

04:54 Each part of this work of art has been suspended to the ceiling in a certain order.

04:57 And that's how this work of art was born.

05:00 [Music]

05:04 An artist named John Muntian

05:06 is based on exact science to create incredible sculptures.

05:09 This one, for example, brings together the portraits of the four members of the Beatles.

05:12 It's hard to imagine how many complex mathematical calculations

05:15 it took to achieve such masterpieces.

05:17 [Music]

05:24 If you apply the right strategy,

05:26 any mess can be transformed into a real painting.

05:29 Next time, tell all those who are complaining about the mess in your room.

05:33 [Music]

05:38 While you are desperately trying to understand how they did that,

05:41 your eyes do not see the most important clue.

05:43 Can you guess what it is?

05:45 Indeed, it is the line that connects the two images.

05:48 But that's not all.

05:49 The one who created these photo collages also makes nice videos

05:52 by combining them with each other in an unexpected way.

05:55 Thus, a car leaving the frame turns into a real firework.

05:59 A real firestorm comes from a saucer.

06:04 [Music]

06:10 Cocktail ingredients are mixed in a concrete mixer

06:13 and party blowers come from a bottle of champagne.

06:15 [Music]

06:31 This guy has to spend his life in the gym.

06:33 Wait, something is wrong.

06:35 What are those white stripes on the sides?

06:36 But of course, they just painted abs on this man's belly.

06:40 In fact, his daughter is a makeup artist

06:41 and tried to give her father a dream body for a few hours.

06:44 Here is an excellent idea of a simple illusion that you can do yourself.

06:48 You call your friends, you buy a Pringles box

06:50 and you tell them to move at a good distance.

06:52 And there you go, you have your next viral TikTok video.

06:55 [Music]

07:10 Do you think this thing is dug inside?

07:12 Not really.

07:13 This is just a pyramid that misleads your brain.

07:16 However, as soon as you realize the risk, you won't be able to stop yourself from seeing it.

07:19 [Music]

07:24 Is it a 3D space modeled on a computer?

07:27 No, just a corridor in a classic hotel.

07:30 Apparently, this hotel was designed only for people who don't drink.

07:34 When we see how these guys practice capoeira on their mats,

07:37 we have our heads spinning.

07:38 Obviously, their vestibular system is in perfect working order.

07:42 The only effective way to prevent yourself from eating at night

07:44 is to create a water barrier between your bedroom and the kitchen.

07:46 Admit it, you thought it was real at first, didn't you?

07:49 [Music]

07:56 You have more than 30 sparkling geometric shapes in front of you.

07:58 Do you see any logic in their arrangement?

08:01 It seems random, but as soon as the viewer looks at this installation from a certain angle,

08:05 all the details come together in letters,

08:07 and the letters form the capital letter "light" in English.

08:09 But that's not all.

08:10 If we look at it from the other side, we'll see the dark mode,

08:12 this time without lighting.

08:14 [Music]

08:16 This time, you're not mistaken, it's a polar bear that just crossed the ceiling.

08:20 This interactive ceiling is located in the Chinese city of Guiyang.

08:23 You can see a wild nature, huge predators and the inhabitants of the underwater world.

08:27 It looks like everything is about to fall on the viewer's head.

08:30 [Music]

08:33 Wait, this goes against all the laws of gravity.

08:36 How can balls roll up without being pushed?

08:39 It's very simple, there's no slope here.

08:41 It's an illusion.

08:42 [Music]

08:45 Some of you must now have in mind Naruto's Aidara.

08:48 The secret of this illusion lies in the makeup, of course.

08:51 [Music]

08:53 In fact, you can do the same thing with your eye.

08:55 [Music]

08:59 Do you think this thing is really in 3D?

09:01 Once again, this is a stunning illusion.

09:03 The rotating disc is completely flat.

09:05 It's just that when we rotate it, we see the geometric pattern in 3D.

09:09 [Music]

09:10 In fact, it's not really infinite.

09:12 There's just a mirror on the ceiling, which gives the impression that the staircase is twice as big.

09:16 Did you understand how the illusion works?

09:18 [Music]

09:19 Okay, we feel like they're watching you wherever you go.

09:22 Here's Gardner's dragon, one of the most popular optical illusions in the world.

09:26 Besides, you can make one at home.

09:27 There are many free cuttings on the Internet.

09:30 Just cut and fold the image according to the instructions, and the terrifying creature is ready.

09:34 A piece of advice, place this dragon above a bright light source so that it's even more impressive.

09:38 Hey, stop being lazy.

09:40 It's time to boost your brain.

09:42 Welcome to the Brain Time French channel.

09:45 Discover all the extraordinary events of the past, the present and even the future.

09:48 The effervescence of the natural environment and the animal kingdom.

09:51 Shocking events as well as unsolved mysteries.

09:53 You'll find all this and much more here.

09:56 So subscribe and you won't regret it.

09:58 [Music]

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