00:14

triangles and quadrangles oscillating with the small side TO the spectator.

02:31

halve gezichten hol en bol apart en naar elkaar toe achter elkaar

02:30

split face diagonal cut space and together v2

00:41

Gelukkig Nieuwjaar. Happy New Year

01:01

Question. Which one is rotating clockwise and which one couterclockwise?

01:01

grid decimal5 1 minute

01:01

The moving object appears farther away on the right and closer on the left.

01:01

Impossible. If you look at her head she rotates, look at her knies she's going back and forth!

02:14

Ames window with normal and reverse percept.

01:01

Relevance of shadows. Moving shadows. Are these objects levitating in space?

00:33

Wiggling circles. Bumps and holes. Optical illusion.

01:41

Stick piercing thru eyeballs of two ladies.

01:21

De Heer Papathomas illusion.

00:54

Fences with shadow and a biped. De Heer - Papathomas illusion.

02:01

The symmetric spinning dancer is not just a spinning dancer. Symmetric sihouette.

02:01

Four pairs of rotating dice. One in each pair misses 3 sides. Concave perceived as convex.

04:00

The rebellious spinning dancer. Are these dancers spinning or not?

01:14

Anamorphic hands sticking out of the wall. Anamorphism.

01:31

Are the silhouettes following the change of movement of the middle dancer? Spinning dancer illusion.

00:54

Scary! Faces of women shaking NO! Don't watch this having a hart condition.

00:54

This can be creepy. These ladies have a DARK side and stare into your SOUL!!!

00:40

Four percepts of symmetric spinning dancers. Symmetric silhouette illusion.

01:33

Rotating or oscillating symmetric spinning dancers. Symmetric silhouette illusion.

01:27

Brain power. SOLUTION. Can you STILL see the two left ladies going back and forth in the end?

01:07

Do you understand how it moves? Swinging window with stick and convex plane.

02:31

You don't believe this! These hearts are not changing at all!! Only the background. Visual illusion.

01:10

INCREDIBLE! A beautiful Ballerina doing a special trick. Beauty combined with illusion.

01:42

Falling faces. Creepy visual illusion. Hollow mask/face illusion.

01:59

Beautiful ballerina's. Do these stunning beauties change direction going from dark to light?

02:13

This can hurt your brain. The most ugly twin. Spooky trippy visual illusion.

02:14

IMPOSSIBLE. Upwards or downwards? Dice missing three sides. Concave perceived as convex.

01:41

Brain power. THE SOLUTION WITH EVEN MORE DISCLOSURE. Symmetric silhouette illusion.

01:47

The fence and the boy seem to move differently. They are one rigid thing. Ames window illusion.

02:47

BRAIN POWER. THE SOLUTION. Rotating or going back and forth? Symmetric silhouette illusion.

02:25

Is god playing with these dice? Three dice you can see in more ways. Visual/optical illussion.

02:25

Are these the dice god is using? Two dice you can see in more ways. Dynamic visual/optical illusion.

02:14

You can't believe what you see. A green alien is sitting on a fence doing an alien trick.

01:19

Living and smiling masks doing a stunning trick. The 4th dimension. Hollow face/mask illusion.

01:01

These spinning dancers don't rotate or?? Control of perception. Symmetric silhouette illusion.

02:02

The 4th dimension. Is god playing with these dice? Concave perceived convex illusion.

01:01

This is impossible. Female skin hollow on one side and convex on the other. Hollow body illusion.

01:07

You don't believe this. That hand rotates two ways! IMPOSSIBLE!! Hollow hand illusion.

01:07

Impossible. Two hands stirring in your brain. Hollow hand illusion.

00:21

Hollow female backside. Both objects are rotating. Hollow body illusion.

00:34

Glass kissing faces. Do you see a glass or kissing faces? Figure--ground perception.

03:21

Which of these alien beauties do you like most? Hollow face/mask illusion.

00:31

Visible because of scaling, turning or moving. Components of visible movement.

01:21

She is telling she only wants to know what you think of her hair, but... Hollow mask/face illusion.

01:21

This spinning Greek lady is only normal in the dark. Optical illusion.

03:34

Is the left ballerina rotating the same way as the middle one? Spinning dancer illusion.

03:21

Split brain. Masks half hollow half convex. Hollow mask illusion.

00:54

This video showes a spinning dancer (or any silhouette) can rotate both ways.

01:01

A 3D stereoscopic video of ballerina's rotating CW and CCW with same silhouette. Disp. 5 degrees.

01:01

A 3D stereoscopic video of ballerina's rotating CW and CCW with same silhouette. Disp 2.5 degrees.

02:01

Mind blowing golden faces. Visual/optical illusion.

02:41

Mind blowing impossible trick with faces of stone. Visual/optical illusion.

01:41

Morphing faces with eyes nailed on a shelf. Trippy visual illusion.

01:11

Smiling heads nailed on a shelf. Visual illusion.

01:11

Wrong right-hand. Hollow hand illusion.

00:54

Ladies with a dark side. Visual illusion. Trippy and scary. You've been warned.