Friday, 24. August 2007
Topic: MAKE - on August 24, 2007 at 11:17:00 AM CEST
DIY laser long-distance listening device
No DIY espionage kit is complete without a long-distance listening device, and no DIY long-distance listening device is complete unless it uses a sweet laser in some form or fashion. If you agree with that statement, then you're in luck, because the following project will show how you can use a laser pointer to hear noises from hundreds of feet away (the distance will be relative to the strength of the laser).
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