http://www.ebaumsworld.com/optical.html Its not some prank whree a rear end pops up on the screen or anything, it actually is pretty cool.
That was a little bugged out... No worse, though, than the time i saw bunnies hopping out of my... well, nevermind.
I never found out that thing you posted, but I broused the site and they have some cool things. For instance the games... they even have the famous penguin game! http://www.ebaumsworld.com/games.shtml