The water runs uphill, drops back down, spins a wheel, and runs right back up hill again. For perspective-bending artist M.C. Escher, that vision this ...

New Optical Illusion Makes 86% of People Feel Like They’re Falling Into a Black Hole Researchers discovered an optical illusion that provides new insights into human vision.

Study the image above closely. You’ll notice that physically it is an impossible object, yet this is a screenshot of full-motion video. The clip after the break shows a gentleman pouring wate… ...