Thu Jul 06 2006 15:06 PST Very Difficult Analytical Puzzles:
When puzzles... are very difficult! UPDATE: upon inspection they don't seem _incredibly_ difficult.
Tue Jun 21 2005 21:51 PST Think Labyrinth: Maze Psychology:
Psychology of mazes (w/disturbing Family Circus graphic)
Mon Jun 20 2005 16:23 PST G. Polya, How to Solve It. :
The whole book soudns good, and I've heard of it before
Wed Jun 01 2005 13:48 PST The Great Ball Contraption:
Together at last! For the first time I'm happy about the Cambrian explosion of lego brick designs