Well head e gyroscope: o que têm em comum

1. Passo 1. Well head — faz parte de — Well. The part above ground that keeps out contamination.
2. Passo 2. Well — utiliza — Rope. Water was raised with a bucket on a rope.
3. Passo 3. Rope — faz parte de — Yo-yo. A thread.
4. Passo 4. Yo-yo — utiliza — Momento angular. Rotation.
5. Passo 5. Momento angular — é utilizado em — Gyroscope. The rotor keeps the direction of its axis.

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