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...shows like Spooks worth? I've discovered how to make those lazer listening devices that you see on spy movies and TV shows like Spooks.
You know the sort.
A lazer beam is aimed at a window, and a sensor picks up the reflection from it. The sounds inside the room cause the glass to vibrate and the sensor picks up that vibration in the reflected lazer beam, and the device converts it to a signal that can be recorded by any regular soudn recorder.
I want to try selling these, but have no idea what they would be worth to a buyer.
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