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Codes and Ciphers: Clever Devices for Coding and Decoding to Cut Out and Make
Gerald Jenkins
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Codes and Ciphers: Clever Devices for Coding and Decoding to Cut Out and Make
Gerald Jenkins
Make this collection of seven ingenious paper gadgets which introduce and explain many of the concepts used in cipher machines. Decode the secret messages and then start to understand how cryptographers try to protect information from prying eyes.
32 pages
| Media | Bøker Pocketbok (Bok med mykt omslag og limt rygg) |
| Utgitt | 20. juni 2002 |
| ISBN13 | 9781899618538 |
| Utgivere | Tarquin Publications |
| Antall sider | 32 |
| Mål | 210 × 297 × 7 mm · 174 g |
