Hydraulic Elevator

The ErrorZap host kneels in a dim machine room pointing at a giant grooved drive sheave wrapped in steel ropes, with a thought bubble showing an elevator car and weights on a seesaw, saying IT'S A SEESAW.

It's a Seesaw on a Rope

Most elevators aren’t lifting you so much as balancing you. How traction, counterweights, hydraulics, and machine-room-less designs work.

September 26, 2026 · 4 min · 824 words · Justin