Land vehicle and lathe: what they have in common

1. Step 1. Land vehicle — includes — Cart. A land vehicle.
2. Step 2. Cart — has part — Axle. The wheels turn on an axle.
3. Step 3. Axle — is part of — Yo-yo. The axis between the discs.
4. Step 4. Yo-yo — has part — Rope. A thread.
5. Step 5. Rope — is part of — Lathe. The bowstring wraps around the workpiece and turns it.

Open Evothings