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09/30/17 06:54
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#190806 - Sonic Weapon ???
Responding to: ???'s previous message
all that's required is a pair or more, relatively high energy hypersonic beams targeted at windows in the building, at slightly different frequencies the sum or difference of which would be at a super-audio frequency. Persons would be unable to hear the beat frequency, yet would be affected by it. This might be a side-effect of what used to be used to listen to what audio information was being generated in the building.

I've got no evidence of this, though I do know a laser bounced off a window could be used to eavesdrop on the people in the room with that window.


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sonic weapon Star Wars Who Knew            01/01/70 00:00      
   Sonic Weapon ???            01/01/70 00:00      

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