Frying pan body and watt steam engine: what they have in common

1. Step 1. Frying pan body — is part of — Non-stick pan. An aluminium body.
2. Step 2. Non-stick pan — is made of — Teflon. A Teflon coating.
3. Step 3. Teflon — uses — Friction. A very low coefficient of friction.
4. Step 4. Friction — is used in — Flanged wheel. The wheel rolls along the rail.
5. Step 5. Flanged wheel — is part of — Steam locomotive. Flanged wheels keep it on the track.
6. Step 6. Steam locomotive — has part — Watt steam engine. A steam locomotive is driven by a steam engine.

Open Evothings