Oven hearth floor and mechanical clock: what they have in common

1. Step 1. Oven hearth floor — is part of — Oven. A red-hot floor on which bread is baked.
2. Step 2. Oven — works like — Air fryer. An air fryer is a small oven where a fan drives the hot air.
3. Step 3. Air fryer — works like — Toaster. The same idea of heating food with an electric coil, but with a flow of air.
4. Step 4. Toaster — has part — Bimetallic strip. The timer of many toasters 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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