Over a period of 25 years as author of the Mathematical Games column for Scientific American, Martin Gardner devoted a column every six months or so to short math problems or puzzles. He was especially careful to present new and...

Famed puzzle expert explains math behind a multitude of mystifying tricks: card tricks, stage "mind reading," coin and match tricks, counting out games, geometric dissections, etc. More than 400 tricks, 135 illustrations. von Gardner,...

One of the subject's clearest, most entertaining introductions offers lucid explanations of special and general theories of relativity, gravity, and spacetime, models of the universe, and more. 100 illustrations. von Gardner, Martin

"Aha! Insight" von Martin Gardner ist eine Sammlung von Rätseln, Paradoxa und mathematischen Problemen, die den Leser dazu anregen, über den Tellerrand hinauszudenken. Das Buch ist bekannt für seine fesselnde Darstellung und die Art und...

The noted expert selects 70 of his favorite "short" puzzles. Includes The Returning Explorer, The Mutilated Chessboard, Scrambled Box Tops, and dozens more. Complete solutions included.

Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space....

Professor Picanumba has dozens of surefire tricks up his sleeve -- and he's willing to show junior mathemagicians how to predict the answers to 88 word and number challenges. Includes solutions and illustrations. von Gardner, Martin