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Laser-Induced Plasma and Talking Lasers

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It is a little known fact that the Pentagon has used powerful plasma-making lasers, a decades old technology, to not only create bursts of light in mid air and irritate human skin, but also to emit HUMAN SPEECH!

It is similar to throwing your voice. If someone speaks at one end, the laser will instantly beam the sound to whatever spot on a surface that it hits, and it will sound like the speech is coming from that spot. It can even be used through glass! Here's an article that goes into more detail:

Furthermore, people have also used laser-induced plasma in the past to create true 3-dimensional holograms in plain old air (technically called "volumetric pictures").

 
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