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Build Your Own Spy Scope (Hands-on High Tech Series)
Build Your Own Spy Scope - Hands-on High Tech Series Author:Shar Levine Who's watching? Find out how every move, telephone conversation, and computer usage can be tracked by today's latest technology. Build Your Own Spy Scope uncovers the history and lingo of spies, hidden messages used by the ancient Greeks and the science of sound, light, and optics. With this fascinating interactive kit, the reader will build a s... more »py scope to see around corners and listen to conversations in the next room!« less