Knowtex

If you’ve ever seen the Moon rising over the horizon, looking so fat and looming that you felt like you could fall right into it, then you’ve been a victim of the famous Moon Illusion. And it is an illusion, a pervasive and persuasive one.

Simple optical illusions can make it seem like the progress bars on your file downloads are moving faster than they actually are.

Winner of the Best Visual Illusion of the Year Contest 2010 .

Watch what happens with these dogs (no camera tricks or special effects... just an illusion).

Look at this illusionary high. The dots appear to be moving, undulating, and animated. Stare at Vomit Vectors for at least one minute—longer if you can stomach it. Disgusting.

Watch what happens with these diamonds? (no camera tricks or special effects used here... just an unbelievable optical illusion)

What do the famous painting and the former United State's President have in common?

Look at the dot a few seconds. You will see colors... in a black and white image!

You see embedded spirals, right, of green, pinkish-orange, and blue? Incredibly, the green and the blue spirals are the same color!

Why do we see streams flowing in the pattern although there are none? Recent studies suggest that the illusion is not created by the brain, as previously thought, but by a natural tiny eye movement called microsaccades....