Optical Illusions

[Cowboy]

Check this out. Isn't it weird how the brain perceives things?
http://www.google.com/imgres?imgurl=http://scienceblogs.com/mixingmemory/upload/2006/09/ThatcherIllusion3.JPG&imgrefurl=http://scienceblogs.com/mixingmemory/2006/09/cool_visual_illusions_the_marg.php&h=367&w=366&sz=34&tbnid=DYiNU1PqjnRcRM:&tbnh=122&tbnw=122&prev=/images?q=illusion&usg=__TrLLB154R0dHUYJjERwUdGuycOI=&ei=4Zc7SvWtNc-Etwekt6gI&sa=X&oi=image_result&resnum=5&ct=image

[Srbo]

The creepy pic of Maggie Thatcher is spot on, though. :biggrin2:

[Natjen24]

If you like this, go to http://www.michaelbach.de/ot/

All sorts of crazy things to keep you busy! :laugh:

[CorbinKale]

That is pretty cool. I have studied optical illusions for how they affect range estimation, but I never came across this one. Thanks for the link!