This web page explains how walking beams work, to transfer a rotary motion up the mountain, over great distances. It uses a Java applet to make an animated diagram of an eighteenth century mining machine. With your mouse you can operate the machine, and try different sizes of rods, levers and wheels.
Serendipity
A good facsimile
Why a Strad sounds so good
Peter Garrett comes good
Good for the environment?
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