fourier analiser from Gymnasiumnovum on Vimeo.
Mixer math with plywood and gears.
http://www.instructables.com/id/Plywood-Math-Machine/
http://hackaday.com/2016/04/11/fourier-machine-mimics-michelson-original-in-plywood/#more-199177
http://hackaday.com/2014/11/18/harmonic-analyzer-mechanical-fourier-computer/
Notice: Upcoming HAARP ionospheric tests from Alaska - 23rd & 24th July 2025
-
High-frequency Active Auroral Research Program (HAARP) is based in Alaska
and it's a high-power, high frequency (HF) transmitter for studying the
ionosph...
16 hours ago
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