Here's an interesting and fun demonstration of a DIY laser microphone for use with a computer. laser pointer: $2, photo cell: $0.30. Cool DIY tech: priceless! (my apologies to MasterCard).
Laser Espionage Microphone (how-to) - video powered by Metacafe
[via LifeHacker]
Friday, September 7, 2007
Build your own laser microphone
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