Spindle whorl and piston pump: what they have in common

1. Step 1. Spindle whorl — is part of — Spindle. A flywheel weight for spinning.
2. Step 2. Spindle — uses — Angular momentum. Spinning the spindle twists the thread.
3. Step 3. Angular momentum — is used in — Flywheel. A flywheel stores rotational energy: conserved angular momentum smooths a machine's motion.
4. Step 4. Flywheel — is part of — Watt steam engine. The flywheel evens out rotation.
5. Step 5. Watt steam engine — evolved from — Piston pump. The first steam engines (Newcomen’s) pumped water out of mines by driving pumps.

Open Evothings