Mysterious Messages 在線電子書 圖書標籤:
發表於2024-11-13
Mysterious Messages 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024
History’s amazing secrets and codes—and how to crack them yourself. This fascinating look at history’s most mysterious messages is packed with puzzles to decode and ciphers that kids can use themselves. Here are the encrypted notes of Spartan warriors, the brilliant code-crackers of Elizabeth I, secret messages of the American Revolution, spy books of the Civil War, the famous Enigma Machine, and the Navajo code talkers. As computers change the way we communicate, codes today are more intriguing than ever. From invisible ink to the CIA, this exciting trip through history is a hands-on, interactive experience— so get cracking!
評分
評分
評分
評分
Mysterious Messages 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024