Spindle whorl e piston pump: o que têm em comum
- Passo 1. Spindle whorl — faz parte de — Spindle. A flywheel weight for spinning.
- Passo 2. Spindle — utiliza — Momento angular. Spinning the spindle twists the thread.
- Passo 3. Momento angular — é utilizado em — Volante de inércia. A flywheel stores rotational energy: conserved angular momentum smooths a machine's motion.
- Passo 4. Volante de inércia — faz parte de — Watt steam engine. The flywheel evens out rotation.
- Passo 5. Watt steam engine — evoluiu de — Piston pump. The first steam engines (Newcomen’s) pumped water out of mines by driving pumps.