3:39
(1/4) Intro/History: Introducing a 100-year-old mechanical computer
engineerguy
5:42
(2/4) Synthesis: A machine that uses gears, springs and levers to add sines and cosines
4:05
(3/4) Analysis: Explaining Fourier analysis with a machine
11:48
(4/4) Operation: The details of setting up the Harmonic Analyzer