XKCD reveals your visual perception quirks

Posted on July 11, 2012 by Ken

http://boingboing.net/2012/07/11/xkcd-reveals-your-visual-perce.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+boingboing%2FiBag+%28Boing+Boing%29

About Ken

Ken is a husband and father from the San Francisco Bay Area, where he works as a civil engineer. He also wrote the NYT bestselling book "Geek Dad: Awesomely Geeky Projects for Dads and Kids to Share." Follow @fitzwillie on Twitter.
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