Archive for the 'Lasers' Category
Monday, August 20th, 2007
Alen from hackedgadgets.com wrote about this laser listener device. A microphone is simply a diaphragm that vibrates with sound waves. The theory behind this device is that when people are talking in a room, the window will vibrate. If you shine a laser on the window, it will bounce off with the same vibrations. Using [...]
- Posted in Lasers
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