Optical Illusion by GEEK · August 18, 2011 Two tiles, seemingly different colors from one angle are actually the same color in different lighting. I don’t get it at all. What’s the trickery here? Is it the shadowplay? The lights? The tiles? I don’t know
0 Scientists Discover Huge Martian Water Deposit December 6, 2011 by GEEK · Published December 6, 2011