Tablet (medicine) and mechanical clock: what they have in common

1. Step 1. Tablet (medicine) — uses — Chemical reaction. A tablet dissolves in the body.
2. Step 2. Chemical reaction — is used in — PCR. An enzymatic reaction.
3. Step 3. PCR — uses — Thermostat. A thermal cycler changes the temperature in cycles.
4. Step 4. Thermostat — has part — Bimetallic strip. A classic thermostat is bimetallic.
5. Step 5. Bimetallic strip — is part of — Marine chronometer. Harrison invented the bimetal strip to compensate for temperature.
6. Step 6. Marine chronometer — is a kind of — Mechanical clock. A marine chronometer is a very accurate mechanical clock that sailors used to find longitude.

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