Historical artwork of a worm gear by da Vinci

Historical artwork of a worm gear by da Vinci

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Caption: Worm gear. Historical artwork of a worm gear or endless screw devised by Leonardo da Vinci (1452- 1519) about 1490. The worm gear consists of a toothed wheel (at centre) which is worked by a short, revolving cylinder (at upper centre) known as the worm. There is a weight attached to the toothed wheel. This type of gear transmits power between perpendicular shafts. Worm gears are used in modern rear-wheel drive car transmissions.

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Keywords: art, artwork, da vinci, device, early, endless, endless screw, gear, historical, history of science, instrument, leonardo, leonardo da, on wheel, screw, technology, vinci, weight, worm, worm gear

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