Lucas's father has recently died in Afghanistan, and to help him cope, his grandmother sends him to Camp Kawani, a camp for kids who have lost a parent. While there, he hears about the local legend of Thomas Jefferson Beale. Beale supposedly hid a hoard of gold in the mountains 200 years before. The location is encrypted in a set of codes no one has ever been able to decipher. When Lucas and his newfound friends decide to track down the treasure,...

"A hands-on guide to introduce kids to the fascinating world of secret codes and ciphers, 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...

Chronicles the development of the Navajo "code talker" program used by the U.S. to fight the Japanese in the Second World War, and describes the experiences of code talkers in action in the Pacific.

"Quantum mechanics gives us a picture of the world that is so radically counterintuitive that it has changed our perspective on reality itself, raising profound questions about concepts such as cause and effect, measurement, and information. Despite its seemingly mysterious nature, quantum mechanics has a broad range of applications in fields such as chemistry, computer science, and cryptography. Quantum Mechanics gives you the logical tools to grasp...