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Going Up!: Elisha Otis’s Trip To The Top

  • NT$ 280NT$ 210

Going Up!: Elisha Otis’s Trip To The Top

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未稅: NT$ 210

庫存狀態: 3

ISBN: 9781770495166

型號: GPID21301

回饋紅利點數: 2

簡介:Great Idea 系列
出版社:Random House
尺寸:25.5 x 0.4 x 20.3公分(cm)
規格:平裝(Paperback)
頁數:32頁(pages)

In 1818, seven-year-old Elisha was fascinated by farm machinery. As a young man, he tried a variety of ways to make a living, but nothing fired his imagination more than the job he found in a bed-frame factory. Soon he invented a machine that made frames four times faster than ever before. In 1852, while overseeing the construction of a new factory, he had to find a way to move heavy machinery to the second floor. He didn't trust the hoisting platform, so he invented a safety brake. It was so successful that rather than lift machine parts, Elisha decided to build "people-hoisting machines." In 1857, Elisha Otis installed his first successful passenger elevator in a five-storey department store in New York City. Before Elisha's invention, buildings were never higher than six stories. At last it was possible to build skyscrapers!