The Old techInterview Forum - Found a source for magic circles

Found a source for magic circles

There's a visual illusion involving two circles posted at:

www.techinterview.org/Puzzles/fog0000000160.html

Well, I found a URL that is quite probably the source of that illusion:

www.sandlotscience.com/Distortions/Distortions_frm.htm

By the way, lots of topics here make me wonder where is their root message. Where can I find the root message for the topic with title "crazy guy on the airplane"?

Thanks

stefaan dot r dot m dot meeuws at pandora dot be

Stefaan R. M. Meeuws
Monday, December 22, 2003

copy and paste the link

http://www.techinterview.org/Puzzles/crazyguyontheairplane.html

JHY
Monday, December 22, 2003