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raise you hand if you can still hear 40Khz
#32
voodoopenguin wrote:
There was a quite successful series of experiments done a while ago of transmitting high frequencies in public places at night that were notorious for marauding gangs of younger people. It couldn't be heard by older people but made the younger ones feel 'out of sorts' so would disperse.

I'm considering deploying this against my too-loud young upstairs neighbors - just have to figure out the delivery mechanism.
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Re: raise you hand if you can still hear 40Khz - by N-OS X-tasy! - 11-30-2021, 09:54 PM

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