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Albert Michelson's Harmonic Analyzer (2014) [pdf]

RossBencina

Awesome. I'd love to know more about instrument making techniques of the era -- especially for precisely calibrated analog computing applications like this. I know that by the 1890s machine tools were commercially available (e.g. Brown and Sharpe Manufacturing were incorporated in 1868 and were operating earlier[1, preface]) but presumably precision instrument makers evolved from clockmakers -- using hand tool techniques perfected much earlier. (Obligatory link to ClickSpring [2])

[1] https://archive.org/details/practicaltreati00cogoog/page/n8/...

[2] https://www.youtube.com/watch?v=dRXI9KLImC4&list=PLZioPDnFPN...

o4c

YT playlist on Albert michelson's harmonic analyzer by engineerguy(2014):

https://www.youtube.com/watch?v=NAsM30MAHLg&list=PL0INsTTU1k...