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Started by Ludovica Ferri (@ludo_) ·

elevators are why skyscrapers work

Steel cables get so heavy past ~500 m that they can barely carry their own weight, so supertall buildings use sky lobbies where you change elevators. Some newer cables are carbon fiber.

5 sources · 29 min down the hole

How I got here

Started with
“why can't elevators go higher than 500m”
Ended at
Burj Khalifa

The Trail

  1. “why can't elevators go higher than 500m” (google.com)
  2. Elevator (en.wikipedia.org)
  3. Elisha Otis (en.wikipedia.org)
  4. Sky lobby (en.wikipedia.org)
  5. Burj Khalifa (en.wikipedia.org)

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