Marine chronometer and windlass: what they have in common

1. Step 1. Marine chronometer — has part — Balance wheel. The pace is set by a temperature-compensated balance.
2. Step 2. Balance wheel — has part — Spring. A spiral hairspring returns the balance.
3. Step 3. Spring — is part of — Ratchet. The pawl spring.
4. Step 4. Ratchet — is part of — Windlass. A ratchet holds the load.

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