Well head and gyroscope: what they have in common

1. Step 1. Well head — is part of — Well. The part above ground that keeps out contamination.
2. Step 2. Well — uses — Rope. Water was raised with a bucket on a rope.
3. Step 3. Rope — is part of — Yo-yo. A thread.
4. Step 4. Yo-yo — uses — Angular momentum. Rotation.
5. Step 5. Angular momentum — is used in — Gyroscope. The rotor keeps the direction of its axis.

Open Evothings