Kite and dewar flask: what they have in common

1. Step 1. Kite — is made of — Silk. Chinese kites were silk.
2. Step 2. Silk — works like — Nylon. Nylon was created as a substitute for silk.
3. Step 3. Nylon — is made of — Crude oil. The raw material is petrochemical.
4. Step 4. Crude oil — is used in — Tanker. It carries oil.
5. Step 5. Tanker — includes — LNG carrier. A tanker.
6. Step 6. LNG carrier — has part — Dewar flask. Insulated tanks.

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