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Da Vinci Wheel Combination Analysis
Da Vinci illustrating the effects of the combination of two or more toothed wheels. Three external wheels. Leonardo explains that to have a wheel that turns in the same direction as the driving wheel, a third wheel must be placed between the two. Madrid Ms. I (BNM) fol. 15v detail). The Madrid Codices are two manuscripts by Leonardo da Vinci which were discovered in the Biblioteca Nacional de Espa̱a in Madrid in 1964. Topics discussed include mechanics, statics, geometry and construction of fortifications. The manuscripts are of great importance as they contain about 15% of his notes referenced today, but are also important for the quality and relevance of the works they contain, which are among the major engineering treatises of their time. The Madrid Codices I was finished during 1490 and 1499, and II from 1503 to 1505.
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