Tyre tread and shaduf: what they have in common

1. Step 1. Tyre tread — is part of — Pneumatic tyre. A tread.
2. Step 2. Pneumatic tyre — is part of — Motorcycle. Pneumatic tyres on both wheels.
3. Step 3. Motorcycle — has part — Wheel. A motorcycle has two wheels, like a bicycle.
4. Step 4. Wheel — is used in — Windlass. A windlass is a wheel and axle used as a simple machine.
5. Step 5. Windlass — is used in — Well. The bucket was raised with a windlass.
6. Step 6. Well — uses — Shaduf. Or with a well sweep.

Open Evothings