science & techWikipediac. 236 BC · Ancient Rome

Elevators date back to Archimedes, and the safety brake of 1852 made them usable

the gist

The earliest known elevator is linked to Archimedes, whom the Roman architect Vitruvius credits with building one around 236 BC. Romans used hoists on hemp ropes, powered by people or animals, and the Colosseum had roughly 25 lifts for raising animals. The biggest leap came with the screw drive, first used in a passenger elevator in 1793 in Russia. Elisha Otis introduced a safety elevator in 1852 that stopped the cab from falling if its cable broke, and the first passenger model was installed in New York in 1857. Electric elevators followed when Werner von Siemens built one in 1880 in Germany.

so what

The elevator's safety brake is the reason tall buildings became practical, because people could trust the lift. This made cities denser and reshaped how office buildings were designed.

fun fact

Elisha Otis's 1854 demonstration in New York showed the safety brake by cutting the cable in public.

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