Des Illusions d'Optique Tellement Incroyables Que Vous Vous Frotterez Les Yeux d'Incrédulité

Sympa

Préparez-vous à douter de vos yeux et de votre cerveau ! 🤯 Ces illusions d'optique sont si folles qu'il vous faudra vous frotter les yeux pour vous assurer que vous voyez bien ce que vous pensez voir. Est-ce que ça bouge, ou votre esprit vous joue-t-il des tours ? Ces couleurs sont-elles même réelles ? 🌀🎨 Vous ne croirez pas à quel point ces illusions peuvent perturber votre perception de la réalité. Elles sont amusantes, frustrantes, et totalement époustouflantes tout à la fois. Alors plongez et découvrez si vous pouvez toutes les déchiffrer — c'est parti ! 👀✨  Animation créée par Sympa. ---------------------------------------------------------------------------------------- Musique par Epidemic Sound https://www.epidemicsound.com   Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna​ ---------------------------------------------------------------------------------------- Nos réseaux sociaux : Facebook: https://www.facebook.com/sympasympacom/ Instagram: https://www.instagram.com/sympa.officiel/  Stock de fichiers (photos, vidéos et autres): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ----------------------------------------------------------------------------------------  Si tu en veux encore plus, fais un tour ici:  http://sympa-sympa.com

Transcript

00:00Something weird is about to happen.

00:03Concentrate on this cross here.

00:05Ignore the crazy wheel of celebrities that turn around the edges.

00:08And whatever you do, do not blink.

00:11Just keep fixing the cross in the middle.

00:13Now, tell me.

00:15Have you noticed that our beautiful favorite celebrities

00:18are starting to look like something from a monster movie?

00:21There is no special effect here.

00:23Believe me, all this is happening only in your mind.

00:27Thus, when you are presented with a series of pictures aligned in this way,

00:31one after the other, your brain starts to bug.

00:34It mixes them and gives them a deformed look.

00:37Before you even realize it,

00:39even the most impeccable features of the Barbie and Ken of Hollywood,

00:43that is to say of Margot Robbie and Ryan Gosling,

00:46begin to twist, to crush or to stretch.

00:49And it's cold in the back.

00:51Here is now an animation of four faces alternating between Selena Gomez and Demi Lovato.

00:57Are you ready?

00:58These faces will continue to pass from one side to the other.

01:01But they will also turn in a circle.

01:03Fix this cross and resist the urge to turn your eyes away.

01:06If you stay focused in the center,

01:09it will be almost impossible for you to detect the metamorphosis between their faces.

01:13The transition seems delayed,

01:16as if it were happening barely.

01:18But when we stop the rotation movement,

01:21BOOM!

01:22It is clear that the metamorphosis was taking place at the same speed.

01:27I present to you the illusion of rotating rays.

01:30If you see what I see,

01:32the outer ring seems to turn in the direction of the needles of a watch,

01:36while the inner ring seems to turn in the opposite direction of the needles of a watch.

01:40But what is strange

01:42is that these circles do not move at all.

01:45The eye movements play a huge role in the creation of this effect.

01:50When you continue to move your gaze around the image,

01:53the illusion of movement persists.

01:56But we can make things more interesting

01:59by placing a photo of Kim Kardashian in the center.

02:02Focus only on her face

02:04and try not to blink.

02:06You notice that the rings seem to slow down

02:09or even stop.

02:10Weird, right?

02:12This illusion was created by a Japanese teacher

02:15known for having conceived a multitude of amazing illusions.

02:18Like this one,

02:19where it looks like rollers with blue dots are going to each other.

02:23Or this one,

02:24where yellow rings seem to go up and down,

02:27almost as if they were getting closer.

02:29But once again,

02:30it is neither animation nor gif.

02:33The movement only occurs in your mind.

02:36The picture, the cry, is frightening in itself.

02:38But an optical illusion can make it even stranger,

02:41giving it practically life.

02:43If we add a small front and back zoom movement

02:45to the iconic work of Munch,

02:47the haunted face seems to grow and shrink,

02:50almost as if it were jumping on you.

02:52It makes the cry really real, doesn't it?

02:55Of course,

02:56this illusion of delayed effects is not only reserved for painting.

03:00We could do the same with a photo of Rihanna's concert.

03:04Fix your gaze on the center of the image

03:06and you will start to see it move,

03:08almost as if you had a place in the front row

03:11during a live performance.

03:13Well,

03:14it may not be as great as seeing Rihanna for real,

03:17but it is still quite impressive.

03:20Then,

03:21we have this picture of a fairly ordinary chest of drawers.

03:24But I would ask you to pay special attention

03:26to the boxes marked with the letters A and B.

03:29Are they the same color or different?

03:32Most people say with confidence

03:34that box A is darker

03:36and that box B is lighter.

03:38But what is strange

03:40is that they are actually exactly the same shade of gray.

03:44One of the 50 shades of gray?

03:46Sorry,

03:47I couldn't help it.

03:48Let's move on.

03:49How does it work?

03:51Well, box B is located in the shadow of this cylinder.

03:55Your brain automatically thinks,

03:57hey,

03:58shadows make things darker,

04:00so it illuminates box B to compensate for the shadow.

04:04While box A, which is outside the shadow,

04:07remains as it is.

04:10Now let's talk about the illusion of the trombone.

04:13If you take a simple grid

04:15and add perfectly straight diagonal lines to it,

04:18something strange happens.

04:20They will seem curved or broken to you.

04:22This is called the illusion of the trombone

04:24because some people say

04:26that the lines look like a row of trombones.

04:28You don't see it?

04:29Well, there is a solution.

04:31If you look at the image from the corner of the eye,

04:33the effect becomes stronger.

04:35So let's put a picture of Timothée Chalamet in the corner.

04:38Fix your gaze on him

04:40and, in your peripheral vision,

04:42you will notice that these straight lines

04:44now seem to be curved,

04:46like a bunch of trombones floating.

04:48Do you see now?

04:50Another interesting aspect is

04:52that the effect changes if we adjust the thickness of the lines.

04:54By thickening them, instead of trombones,

04:56we start to see something that looks like chains.

04:59But if we do the opposite,

05:01by making the lines thinner,

05:03they will look more like wavy ribbons.

05:05Here, we have pictures of two pairs of crocs.

05:08And we can all agree that this one is pink

05:11and that this one is green, right?

05:13Great!

05:15But let's make it a little more difficult with this new image.

05:17So, what color are these crocs?

05:20Look carefully and tell me.

05:22Which option do you think you saw?

05:24Number 1, 2 or 3?

05:26Do you have the answer?

05:29If you have chosen option 1, you are right.

05:32These crocs are actually pink,

05:34but they seem gray because there is a green filter on the image.

05:38The lighting deceives our eyes

05:40by making them see colors differently.

05:42White objects, like socks,

05:44become green,

05:46while pink objects, like crocs,

05:48take on a kind of gray hue.

05:50This illusion of consistency of colors

05:53demonstrates how much the lighting can deceive our brain.

05:58Here is another illusion, pink.

06:01This time, we have an image with a white circle in the middle.

06:04Now, let's add a little movement.

06:07I know this animation is intense,

06:09but keep fixing the black X in the center.

06:13Suddenly, this white circle seems to take a pale pink hue.

06:17It's almost as if the red and white pixels were mixing.

06:21A similar phenomenon occurs with this red and white grid.

06:25Concentrate again on the black X in the center.

06:28You will notice that when the grid suddenly becomes entirely white,

06:32the red spaces can still seem slightly pink.

06:36The explanation is that when you fix the X,

06:39your eyes get used to seeing the red and white edges.

06:42This adaptation effect leaves a remaining image in your vision,

06:46and your brain clings to the red so strongly

06:49that when it is removed, it replaces the white with a touch of pink.

06:52For our last magic trick,

06:54here is an illusion called the Pogendorf triangles.

06:58What do you see when you look at this strange shape?

07:01Do you see two assembled triangles, one here and the other there?

07:05It would seem logical.

07:07But that's not what's going on.

07:09I mean, yes, there are indeed two triangles in this image,

07:13but not in their positions.

07:15What is actually happening is that your brain thinks

07:17that an imaginary diagonal line crosses them,

07:20as if these two edges were connected

07:22and were part of the same line.

07:24But in truth, these edges do not connect at all.

07:28You see, they are actually two distinct lines that are not aligned.

07:32As I said earlier, there are indeed two triangles in this image,

07:36but they do not present themselves exactly as we expected.

07:40Let's separate these shapes, and here they are.

07:43This illusion works like this.

07:45When we see partially hidden objects,

07:47our brain somehow creates imaginary contours

07:50to make things more logical.

07:52But these contours do not really exist.

07:55The same thing happens here.

07:57Your brain thinks that this image is simply strange,

08:00and it tries to understand it by filling the empty spaces in the middle.

08:04So, you end up seeing the gray areas

08:07as being part of a single translucent rectangle,

08:10but they do not actually exist.

08:12Pretty crazy, isn't it?

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