Starter motor and parachute: what they have in common

1. Step 1. Starter motor — evolved from — Crank. It replaced the starting crank.
2. Step 2. Crank — is used in — Windlass. The handle of a windlass is a crank.
3. Step 3. Windlass — has part — Rope. A rope.
4. Step 4. Rope — is part of — Parachute. The lines are ropes.

Open Evothings