You can try the first discovery and the 3D controls now. Stella unlocks every stage.
Explore how fire turns water into steam, steam becomes pressure, and pressure moves pistons, rods, and iron wheels.
A steam engine hands the heat of a fire to water, makes steam pressure, and turns that push into rotation through the piston and the rods. Here you follow the conversion heat -> pressure -> straight motion -> rotation one step at a time.
Background reference: Encyclopaedia Britannica: Steam .
Use the three 30-second discovery buttons to open the highlights of heat, pressure, and the driving wheels first.
You can try the first discovery and the 3D controls now. Stella unlocks every stage.
