(2/4) Synthesis: A machine that uses gears, springs and levers to add sines and cosines

This series on Albert Michelson’s Harmonic Analyzer celebrates a nineteenth century mechanical computer that performed Fourier analysis by using gears, springs and levers to calculate with sines and cosines—an astonishing feat in an age before electronic computers. This video (the second of four) shows how to use the machine to do Fourier synthesis. Check out the series companion book and learn how to get a free PDF of the entire book at

You can listen to (2/4) Synthesis: A machine that uses gears, springs and levers to add sines and cosines online on Radio and Podcast. Open the player on this page to stream the available audio.

(2/4) Synthesis: A machine that uses gears, springs and levers to add sines and cosines is an episode from Engineerguy videos & audio by Bill Hammack.

This episode is 5:41 long.

This episode was published on Nov 26, 2014.

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