 | Galileo Galilei - Biography & Autobiography - 1914 - 378 pages
...PROPOSITION IV The times of descent along planes of the same length but of different inclinations are to each other in the inverse ratio of the square roots of their heights From a single point B draw the planes BA and BC, having the same length but different inclinations;... | |
 | Brian Lasater - History - 2008 - 600 pages
...Proposition IV The times of descent along planes of the same length, but of different inclinations, are to each other in the inverse ratio of the square roots of their heights. (Knedler, 2, p. 69-79) During the 14th century, the French scholar Nicole Oresme had studied... | |
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AC, it follows, ex cequali, that as AM is to AC so is the time along AM to the time along AC. THEOREM IV, PROPOSITION IV The times of descent along planes of the same length but of different inclinations are to each other in the inverse ratio of the square... 