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by andrewla 1594 days ago
I don't think this is true. Archimedes screw is a similarly shaped helix but contained or partially contained in a tube so that it can move substances by rotary action.

Using a helix as a simple machine is an old concept and probably predates writing; that's about as much of a common ancestor as they share.

1 comments

Agreed. Archimedes' screw depends on gravity pulling the water to one side of the mechanism; it can't work vertically.