- Mathematische Basteleien
Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes, Latticework of Letters. English/German.
http://www.mathematische-basteleien.de/
(Added: Mon Apr 04 2011 Hits: 0 Rating: 0.00 Votes: 0)
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- SimonSingh.net
Home of Simon Singh: author, journalist and TV producer, specialising in science and mathematics. Cryptography is one of his specialties, and his site has a lot of educational and fun content about codes and codebreaking.
http://www.simonsingh.net/
(Added: Mon Apr 04 2011 Hits: 0 Rating: 0.00 Votes: 0)
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