Natural rubber and headphones: what they have in common

1. Step 1. Natural rubber — is material for — Ball. The rubber balls of Mesoamerica.
2. Step 2. Ball — includes — Golf ball. A ball.
3. Step 3. Golf ball — is made of — Gutta-percha. “Gutty” balls were gutta-percha.
4. Step 4. Gutta-percha — is part of — Transatlantic cable. Insulation.
5. Step 5. Transatlantic cable — has part — Copper wire. A copper core.
6. Step 6. Copper wire — is part of — Headphones. A cable.

Open Evothings