Truck cab and telephone: what they have in common

1. Step 1. Truck cab — is part of — Pickup truck. A cockpit.
2. Step 2. Pickup truck — has part — Leaf spring. The rear axle springs.
3. Step 3. Leaf spring — is a kind of — Spring. A spring.
4. Step 4. Spring — is part of — Rotary dial. A return spring.
5. Step 5. Rotary dial — is part of — Telephone. A dial.

Open Evothings