Michelson's Harmonic Analyzer

From WikiMathCom
Jump to: navigation, search

Albert Michelson's Harmonic Analyzer is a nineteenth century mechanical calculator that can perform Fourier analysis of given functions. With only gears and other mechanisms, this computer is capable of producing a function given its Fourier coefficients (synthesis); and inversely, computing the Fourier coefficients of a sample function (analysis).

The device was designed in 1897 by the physicist Albert Michelson, and several models were manufactured and sold by William Gaertner & Co. One of the original machines was kept in the University of Illinois. In 2014, this machine was restored by Bill Hammack [1], renowning the artifact in some media.

Main page of the project: [2]. Videos on Youtube: [3] [4] [5] [6] (extras:[7] [8] [9]). Book: [10].