Spying with a Laser

HouseholdHackerPublished: June 21, 201614 views
Published: June 21, 2016

Want to spy on people with a laser? Dating back to the 1940s, this oldie but goody is super simple to pull off! We can easily send audio over a laser and into a basic light-sensitive receiver.

The method itself was developed by Léon Theremin in the 1940's and originally used a simple IR beam invi

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