Labels:boat | book | earth | gazette | person | pole | poster | reckoner | trade name OCR: 5 INDUSTRY Leonardo IS said to have learned the textile BOBBINTHREADER trade as young man in Florence He invented many machines to improve his device winds thread the efficiency evenly onto bobbin. production. From one As the crank is turned, the of his textile bobbin moves back and forth machines, he so the thread winds uniformly. hoped to make Florence was center of the 60 000 ducats textile industry, producing fine year silks and woolens This sketch of bobbin threader shows one of many improvements STRY textile Leonardo industry desi igned for the INDUS "Though human ingenuity may make various inventions it will never devise any inventions more beautiful, nor more simple nor more to the purpose, than Nature does; because in her inventions nothing wanting, and nothing superfluous. 1996 S ...
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