Anonymous ID: 91991b May 10, 2021, 4:34 p.m. No.13631235   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>13630548

it's sonic, but it's microwave-based.

 

The microwave is pulsed as a square wave, using the same carrier frequencies that a microwave oven uses (heats water, causing instantaneous expansion of any tissue, the expansion shock wave creates the sound)

 

The square wave is pulsed at audio frequencies.

 

This is very old tech, widely implemented in the 1970s.

 

This is not the advanced shit that some people are dealing with now.

 

But it's a good introduction to the kinds of things that can be done

 

This basic stuff in the US could honestly be coming from 5G towers now, since it's directional.