Cats' Paws and Catapults 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Steven Vogel 作者

W. W. Norton & Company

译者

2000-1-17 出版日期

384 页数

$ 27.06 价格

Paperback

丛书系列

9780393319903 图书编码

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Nature and humans build their devices with the same earthly materials and use them in the same air and water, pulled by the same gravity. Why, then, do their designs diverge so sharply? Humans, for instance, love right angles, while nature's angles are rarely right and usually rounded. Our technology goes around on wheels-and on rotating pulleys, gears, shafts, and cams-yet in nature only the tiny propellers of bacteria spin as true wheels. Our hinges turn because hard parts slide around each other, whereas nature's hinges (a rabbit's ear, for example) more often swing by bending flexible materials. In this marvelously surprising, witty book, Steven Vogel compares these two mechanical worlds, introduces the reader to his field of biomechanics, and explains how the nexus of physical law, size, and convenience of construction determine the designs of both people and nature. "This elegant comparison of human and biological technology will forever change the way you look at each."-Michael LaBarbera, American Scientist

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