Directory: Top/Science/Math/Recreations

Final Answers
Numerous facts including formulas, magic tricks, fallacies, recreations compiled by Dr. Gerald P. Michon.
http://home.att.net/~numericana/answer/
Att.net ~ Site Info Whois Trace Route RBL Check

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/
Simonsingh.net ~ Site Info Whois Trace Route RBL Check

Mathematical Lego Sculptures
Designed and built by Andrew Lipson. Images and LDraw files.
http://www.andrewlipson.com/mathlego.htm
Andrewlipson.com ~ Site Info Whois Trace Route RBL Check

Recmath
Includes pages on magic squares and polyomino patterns and contains related java applets.
http://www3.sympatico.ca/diharper/
Sympatico.ca ~ Site Info Whois Trace Route RBL Check

Mathematical Fiction
A list of mathematical fictional movies, books, stories, plays and shows. Split into categories including children's books. Can be sorted by mathematical content and literary quality.
http://math.cofc.edu/faculty/kasman/MATHFICT/
Cofc.edu ~ Site Info Whois Trace Route RBL Check

The Nine Digits Page
Puzzles and problems connected with numbers using the digits 1-9.
http://www.worldofnumbers.com/ninedig1.htm
Worldofnumbers.com ~ Site Info Whois Trace Route RBL Check

Who Can Name the Bigger Number?
An essay by Scott Aaronson on the quest for ever-bigger numbers, from exponentials to Busy Beavers.
http://www.scottaaronson.com/writings/bignumbers.html
Scottaaronson.com ~ Site Info Whois Trace Route RBL Check

How To Manually Find A Square Root
The way to do find a square root without a calculator.
http://math.arizona.edu/~kerl/doc/square-root.html
Arizona.edu ~ Site Info Whois Trace Route RBL Check

Eureka
The annual journal of the Archimedeans, the mathematical society of the University of Cambridge. It regularly contains articles on recreational mathematics.
http://www.archim.org.uk/eureka/
Archim.org.uk ~ Site Info Whois Trace Route RBL Check

Origami Mathematics
Information on the mathematics of paper folding.
http://www.merrimack.edu/~thull/OrigamiMath.html
Merrimack.edu ~ Site Info Whois Trace Route RBL Check