Codes, Ciphers and Secret Writing
Martin Gardner
""A fascinating, challenging book.""--A.L.A. Booklist . Experiment with cryptography - the science of secret writing. 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 outer space. Hours of intrigue and challenge. 45 diagrams.
Abstract: ""A fascinating, challenging book.""--A.L.A. Booklist . Experiment with cryptography - the science of secret writing. 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 outer space. Hours of intrigue and challenge. 45 diagrams.
Abstract: ""A fascinating, challenging book.""--A.L.A. Booklist . Experiment with cryptography - the science of secret writing. 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 outer space. Hours of intrigue and challenge. 45 diagrams.
Catégories:
Année:
2013
Editeur::
Dover Publications
Langue:
english
Pages:
123
ISBN 10:
0486320316
ISBN 13:
9780486320311
Collection:
Dover Children’s Activity Books
Fichier:
PDF, 2.47 MB
IPFS:
,
english, 2013