(svar til dk.videnskab )
Hvem havde lige forestillet sig at Albert Michelson fra 1800-tallet designede flere analoge spektrumanalysatorer / Fourier-analysatorer:
17 Nov 2014, Pre-digital computer 'cranks out' Fourier Transforms. Boffins get a handle on pre-digital computer, restore it to working order:Se fx:
(3/4) Analysis: Explaining Fourier analysis with a machine:
(4/4) Operation: The details of setting up the Harmonic Analyzer:
Fra serien:
(1/4) Intro/History: Introducing a 100-year-old mechanical computer:
(2/4) Synthesis: A machine that uses gears, springs and levers to add sines and cosines:
(3/4) Analysis: Explaining Fourier analysis with a machine:
(4/4) Operation: The details of setting up the Harmonic Analyzer:
Glenn