Archive for January, 2009

What is wrong with this picture?

Posted by: Dave Richeson on January 28, 2009

Six degrees of separation

Posted by: Dave Richeson on January 27, 2009

Photos from the PUP booth at the Joint Meetings

Posted by: Dave Richeson on January 26, 2009

John Stallings’ obit in NYT

Posted by: Dave Richeson on January 26, 2009

Why do mirrors reverse right and left but not up and down?

Posted by: Dave Richeson on January 24, 2009

How to use KnotPlot

Posted by: Dave Richeson on January 22, 2009

Can you hear me now?

Posted by: Dave Richeson on January 22, 2009

Tetragon fail

Posted by: Dave Richeson on January 20, 2009

24 is the highest number

Posted by: Dave Richeson on January 18, 2009

Calculus and sustainability

Posted by: Dave Richeson on January 15, 2009

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