People throughout history have written messages in code and ciphers to pass along closely held, secret information. Today, countries around the world enlist cryptanalysts to intercept and crack messages to keep our world safe. Code Cracking for Kids explores many aspects of cryptology, including famous people who used and invented codes and ciphers, such as Julius Caesar and Thomas Jefferson; codes used during wars, including the Enigma machine, whose cracking helped the Allies gather critical information on German intelligence in World War II; and work currently being done by the government, such as in the National Security Agency. Readers also will learn about unsolved codes and ciphers throughout history, little-known codes used today, and devices used over the years by governments and their spies to conceal information. Code Cracking for Kids includes hands-on activities that allow kids to replicate early code devices, learn several different codes and ciphers to encode and decode messages, and hide a secret message inside a hollow egg.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
Jean Daigneau has contributed to numerous children's publications including Highlights and Fun for Kidz, and she writes Genre Spotlight, a quarterly feature for Children's Book Insider.
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
Vendeur : Better World Books, Mishawaka, IN, Etats-Unis
Etat : Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. N° de réf. du vendeur 48477104-6
Quantité disponible : 1 disponible(s)
Vendeur : Shakespeare Book House, Rockford, IL, Etats-Unis
Etat : new. N° de réf. du vendeur EBBV.1641601388.N
Quantité disponible : 1 disponible(s)
Vendeur : Revaluation Books, Exeter, Royaume-Uni
Paperback. Etat : Brand New. 129 pages. 8.25x10.75x0.25 inches. In Stock. N° de réf. du vendeur zk1641601388
Quantité disponible : 1 disponible(s)
Vendeur : London Bridge Books, London, Royaume-Uni
Paperback. Etat : Good. N° de réf. du vendeur 1641601388-3-29096168
Quantité disponible : 1 disponible(s)