Cling film and shaduf: what they have in common

1. Step 1. Cling film — is made of — Polyethylene. Polyethylene.
2. Step 2. Polyethylene — is material for — Skateboard. The wheels are polyurethane.
3. Step 3. Skateboard — has part — Wheel. Four wheels.
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