Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
Codes, Ciphers and Secret Writing - Tenyps - Spy Gear, Kids Spy Toys, Anti Spy Tools
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Codes, Ciphers and Secret Writing

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Details: Product Description "A fascinating, challenging book." ― A.L.A. BooklistLearn to use the most important codes and methods of secret communication in use since ancient times. Cipher and decipher codes used by spies. Explore the famous codes that changed the fate of nations and political leaders. And enjoy hours of fun experimenting with cryptography ― the science of secret writing. Beginning with simple letter substitutions and transposition ciphers, world-famous science writer Martin Gardner explains how to break complicated polyalphabetical ciphers and codes worked with grids, squares, triangles, and charts. You'll learn codes that are keyed to typewriters and telephone dials . . . even codes that use playing cards, knots, and swizzle sticks. Experiment with invisible writing ― inks that glow in black light and turn red under heat ― and explore the possibilities of sending messages through outer space to unknown worlds. Using this book, you can solve the historically famous Playfair Cipher used by Australia in World War II, the Pigpen Cipher used by Confederate soldiers during the Civil War, Thomas Jefferson's Wheel Cipher, the Beaufort system used by the British Royal Navy, codes devised by authors for heroes in literature ― Sherlock Holmes, Captain Kidd, and the Shadow. And you will enjoy experimenting with bizarre methods of message sending ― the Dot Code, Knot Code, Swizzle Code, and more. Young cryptanalysts, cipher fans, and puzzlists of all ages will find hours of intrigue and challenge in Codes, Ciphers and Secret Writing. "A stimulating must for the intermediate cryptographer." ― The Kirkus Reviews From the Back Cover "A fascinating, challenging book."― A.L.A. BooklistLearn to use the most important codes and methods of secret communication in use since ancient times. Cipher and decipher codes used by spies. Explore the famous codes that changed the fate of nations and political leaders. And enjoy hours of fun experimenting with cryptography―the science of secret writing. Beginning with simple letter substitutions and transposition ciphers, world-famous science writer Martin Gardner explains how to break complicated polyalphabetical ciphers and codes worked with grids, squares, triangles, and charts. You'll learn codes that are keyed to typewriters and telephone dials . . . even codes that use playing cards, knots, and swizzle sticks. Experiment with invisible writing―inks that glow in black light and turn red under heat―and explore the possibilities of sending messages through outer space to unknown worlds. Using this book, you can solve the historically famous Playfair Cipher used by Australia in World War II, the Pigpen Cipher used by Confederate soldiers during the Civil War, Thomas Jefferson's Wheel Cipher, the Beaufort system used by the British Royal Navy, codes devised by authors for heroes in literature―Sherlock Holmes, Captain Kidd, and the Shadow. And you will enjoy experimenting with bizarre methods of message sending―the Dot Code, Knot Code, Swizzle Code, and more. Young cryptanalysts, cipher fans, and puzzlists of all ages will find hours of intrigue and challenge in Codes, Ciphers and Secret Writing. "A stimulating must for the intermediate cryptographer."― The Kirkus ReviewsUnabridged Dover (1984) republication of the work originally published by Simon & Schuster, 1972. About the Author Martin Gardner was a renowned author who published over 70 books on subjects from science and math to poetry and religion. He also had a lifelong passion for magic tricks and puzzles. Well known for his mathematical games column in Scientific American and his "Trick of the Month" in Physics Teacher magazine, Gardner attracted a loyal following with his intelligence, wit, and imagination. Martin Gardner: A Remembrance The worldwide mathematical community was saddened by the death of Martin Gardner on May 22, 2010. Martin was 95 years old when he died, and had written 70 or 80 books during his long lifetime as an author.

Author: Gardner, Martin

Brand: Dover Publications

Number Of Pages: 96

Publisher: Dover Publications

UPC: 800759247615

EAN: 0800759247615

Release Date: 01-10-1984

Package Dimensions: 8.3 x 5.3 x 0.3 inches

Languages: English

Binding: Paperback