Thermoking Alarm Codes
THERMOKING ALARM CODES : OF HOMELAND SECURITY
Thermoking Alarm Codes
- fear resulting from the awareness of danger
- dismay: fill with apprehension or alarm; cause to be unpleasantly surprised; “I was horrified at the thought of being late for my interview”; “The news of the executions horrified us”
- a device that signals the occurrence of some undesirable event
- Cause (someone) to feel frightened, disturbed, or in danger
- Be fitted or protected with an alarm
- A system of words, letters, figures, or other symbols substituted for other words, letters, etc., esp. for the purposes of secrecy
- A series of letters, numbers, or symbols assigned to something for the purposes of classification or identification
- A system of signals, such as sounds, light flashes, or flags, used to send messages
- (code) a set of rules or principles or laws (especially written ones)
- attach a code to; “Code the pieces with numbers so that you can identify them later”
- (code) a coding system used for transmitting messages requiring brevity or secrecy
thermoking alarm codes – The Code
Accessible, compelling, and timely, this international bestseller, now adapted for young people, is sure to make readers see the past—and the future—in a whole new way.
From the Hardcover edition.
Calling upon accounts of political intrigue and tales of life and death, author Simon Singh tells history’s most fascinating story of deception and cunning: the science of cryptography–the encoding and decoding of private information. Based on The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography, this version has been abridged and slightly simplified for a younger audience. None of the appeal for curious problem-solving minds has been lost, though. From Julius Caesar to the 10th-century Arabs; from Mary Queen of Scots to “Alice and Bob”; from the Germans’ Enigma machine to the Navajo code talkers in World War II, Singh traces the use of code to protect–and betray–secrecy. Moving right into the present, he describes how the Information Age has provided a whole new set of challenges for cryptographers. How private are your e-mail communications? How secure is sending your credit card information over the Internet? And how much secrecy will the government tolerate? Complex but highly accessible, The Code Book will make readers see the past–and the future–in a whole new light. (Ages 14 and older)
The girl above them is spinning
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thermoking alarm codes
Crack the code of superspy science fun!
Make your own spy sunglasses
* Write messages with invisible ink
* Hook up a secret alarm, and much more!
Discover how spies use science to keep–or uncover–top secrets. Learn how to go under cover, master Morse code, and even build devices to see and hear through walls! These and dozens of other fun-filled activities give you an inside look at the science behind spy gadgets and tricks of the trade. All the activities are completely safe and can be done with everyday stuff from around the house.