“Mechanical Principles” – Simple gear actions from 1930 by Ralph Steiner, set to classical music. From the UToobage comments:

Some of the mechanisms featured:
0:16 Positive displacement pump
0:26 Four-stroke engine piston;
0:50 Simple steam engines or pumps;
2:00 Steam engine reversing gear as on ships;
3:10 Differential gear;
4:05 Worm gear;
4:10 Archimedes screw;
5:22 Geneva gear;
5:32 Pawl and ratchet;
5:55 Grasshopper escapement;
7:15 Scotch yokes;
8:07 Positive displacement pump (same as 0:16);
9:29 Wheel and disc integrator used in analog computers;
9:54 Possibly a turbine.

So let’s all crank it, turn it and pump it up on The Overnight Open Thread.