DIY Laser Microphone

This just may be the coolest way to eavesdrop on a conversation. You can now build your own Clear-and-Present-Danger-esque laser microphone using inexpensive materials:

By reflecting any type of laser (with no modification of the emitted light) off of a thin media (like a window plane) the Laser Snooper is to capture the reflected beam. The reflected beam is modulated by the vibrations in the pane from noises on the other side of the window. The receiver detects this modulation and reconstructs the noises and conversations. Also, the device in mind was made with parts that are very cheap and easily obtainable.

How cool is that?

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