Dam gates and bell: what they have in common

1. Step 1. Dam gates — is part of — Dam. They regulate the release of water.
2. Step 2. Dam — uses — Universal gravitation. Stability through its own weight.
3. Step 3. Universal gravitation — is used in — Escapement. The pace of the clock is set by a falling weight.
4. Step 4. Escapement — is part of — Tower clock. An escapement sets the pace.
5. Step 5. Tower clock — has part — Bell. The chime of the clock.

Open Evothings