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Web math-frolic.blogspot.com

Wednesday, October 12, 2011

Of Hula Hoops and Geometry, and...

http://www.futilitycloset.com/2011/09/22/johnson-circles/

...and in other news, Keith Devlin has a brand-spanking newly-launched blog here (1st post on Steve Jobs):


http://profkeithdevlin.wordpress.com

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