Math en direct. Math Duel. Cool Optical Illusions Pictures for Kids and Adults. Optical illusions (sometimes called also visual illusions) are cool images perceived in a manner that differs from objective reality. What the human eye sees is interpreted by the brain in a way that contradicts physical measurement of the source image. You can find several types of cool optical illusions on this site all sorted into detailed categories located below and in menu on the right side as well. They are suitable not only for adults but also for kids. Illusion of the Day This video will blow your mind. Warm Up Your Brain Can you find all 5 Y's in this picture?
Here are the 5 Y's circled if you could not find them. Red Dot Only a few people can see an image hidden in this eye test. There is a horse hidden. Brick Wall Visual Illusion Yet another cool picture that baffled Internet. There is a lighted cigar. 2011 Quadrature. Num. 79. p. 32-42. Jeu d'ampoules ou comment éviter la crise de nerfs à un électricien dépressif à coup d'algèbre linéaire sur F2. MadsenLightsOut. Activités Logique Raisonnement.