Gravity, g-forces, teardrop loops, and the wildest record-breaking rides on Earth. No engine required — just physics.
The very first roller coasters were giant ice slides built in Russia in the 1600s.
One of America's first coasters wasn't built for fun — it moved coal down a Pennsylvania mountain.
Astronauts train for weightlessness in a plane nicknamed the "Vomit Comet."
Modern loops are shaped like teardrops, not circles — that's what keeps your neck happy.
Every coaster runs on one thing: energy conversion. Drag the slider to change the height — and slope — of the lift hill and watch potential energy turn into kinetic energy and speed on the way down.
Tap "Send it down" to release the coaster.
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