At which major event did Elisha Otis famously demonstrate his elevator safety brake by cutting the hoisting rope?
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Elisha Otis revolutionized vertical travel at New York's Crystal Palace during the 1853 Exhibition. He stood on an open platform and ordered the hoisting rope to be cut. Instead of falling, the safety brake engaged instantly, stopping the platform. This dramatic demonstration proved that passenger elevators were safe, paving the way for the modern skyscraper era. Photo: Unknown, Wikimedia Commons, Public domain.
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Source: Wikipedia (CC BY-SA)
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