Bonus: Rocker arms: sinusoids in two different directions

Update: 2014-11-26

Description

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 bonus video shows the motion of every rocker arm -- that is, every sinusoid. The end of the video shows all the arms in motion together. Check out the series companion book and learn how to get a free PDF of the entire book at http://www.engineerguy.com/fourier.

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In Channel

(4/4) Operation: The details of setting up the Harmonic Analyzer

2014-11-2611:47

Bonus: Rocker arms: sinusoids in two different directions

2014-11-2617:28

Bonus: Watch the machine spin around over and over...

2014-11-2602:53

Page-by-Page Guide to the Free PDF of the Book Albert Michelson's Harmonic Analyzer

2014-11-2619:44

(3/4) Analysis: Explaining Fourier analysis with a machine

2014-11-2604:04

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

2014-11-2605:41

(1/4) Intro/History: Introducing a 100-year-old mechanical computer

2014-11-2603:38

The Cigarette machine

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Kodak

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How the Donner Party inspired food packaging

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Theremin: How science fiction got its sound

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Ferris Wheel: How the Eiffel Tower wasn't good enough

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Coffee makers: How baseball put them in our homes

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Why the Dvorak keyboard didn’t take over the world

2014-06-2703:49

PicturePhone: How Bell Telephone lost a half billion, but nearly created the internet

2014-06-2703:59

How Sony’s Betamax lost to JVC’s VHS Cassette Recorder

2014-06-2703:49

Stories of Technological Failure: PicturePhone, Dvorak keyboard & Betamax

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How a Lead-Acid Battery Works

2012-07-0305:11

What Keeps Nuclear Weapons from Proliferating

2012-06-1904:39

How an Atomic Clock Works

2012-06-1204:33

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Bonus: Rocker arms: sinusoids in two different directions

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Bonus: Rocker arms: sinusoids in two different directions

Bill Hammack

Bonus: Rocker arms: sinusoids in two different directions