Tuesday, September 10, 2013

1434 - gavin menzies (pdf)

Comparisons of the machines of Leonardo with earlier machines from China reveal close similarities in toothed wheels and gear wheels, ratchets, pins, and axles, cams and cam-shaped rocking levers, flywheels, crankshaft systems, balls and chains, spoke wheels, well pulleys, chain devices, suspension bridges, segmented arch bridges, contour maps, parachutes, hot-air balloons, “helicopters,” multibarreled machine guns, dismountable cannons, armored cars, catapults, barrage cannons and bombards, paddle-wheel boats, swing bridges, printing presses, odometers, compasses and dividers, canals and locks.

Even the most devoted supporter of Leonardo (like my family and I!) must surely wonder whether his work’s amazing similarity to Chinese engineering could be the product of coincidence.

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