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To: PIF

With you for sure. Here in San Jose CA a group of con men almost convinced the city council that a set up of speakers could be posted along the freeway and could cancel vehicle noise by inverting the sound waves and sending them back at the traffic. I don’t know how but this foray into the world of Si Fi got stopped before they got ahold of the taxpayer’s money.

So Korea should have engineers who can stop this ploy.


40 posted on 05/10/2024 8:58:15 AM PDT by KC_for_Freedom (retired aerospace engineer and CSP who also taught)
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To: KC_for_Freedom
" inverting the sound waves"

I never heard of "inverting sound waves". How is that done?

43 posted on 05/10/2024 9:46:27 AM PDT by A Navy Vet (USA Birth Certificate - 1787. Death Certificate - 2021? )
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