Bulbous bow and smartphone: what they have in common

1. Step 1. Bulbous bow — is part of — Tanker. A bulb.
2. Step 2. Tanker — uses — Crude oil. It carries oil.
3. Step 3. Crude oil — is material for — Kerosene. A fraction of crude oil.
4. Step 4. Kerosene — is material for — Reusable rocket. The fuel is kerosene or methane.
5. Step 5. Reusable rocket — has part — GPS (satellite navigation). Navigation during landing.
6. Step 6. GPS (satellite navigation) — is part of — Smartphone. A satellite navigation receiver.

Open Evothings