Steering wheel and needle: what they have in common

1. Step 1. Steering wheel — has part — Airbag. An airbag hides in the steering wheel and inflates instantly in a crash.
2. Step 2. Airbag — is made of — Nylon. The airbag is nylon.
3. Step 3. Nylon — is material for — Toothbrush. Nylon bristles (1938).
4. Step 4. Toothbrush — is made of — Bone. Addis’s toothbrush has a bone handle.
5. Step 5. Bone — is material for — Needle. The first needles with an eye were carved from bone.

Open Evothings