Posted: May 30, 2014 6:50 pm
DavidMcC wrote:...I saw it her a few years ago, when the subject of optical ilusions was better covered on the internet than it is now.
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2012897#p2012897
DavidMcC wrote:...I saw it her a few years ago, when the subject of optical ilusions was better covered on the internet than it is now.