Biomimetics and gas lamp: what they have in common

1. Step 1. Biomimetics — is used in — Hook-and-loop fastener. The idea was borrowed from burdock burrs — an example of biomimetics (the term appeared later than the fastener).
2. Step 2. Hook-and-loop fastener — is made of — Nylon. Nylon hooks and loops.
3. Step 3. Nylon — is material for — Hot air balloon. A light, strong envelope fabric.
4. Step 4. Hot air balloon — has part — Gas burner. It heats the air in the envelope with a propane flame.
5. Step 5. Gas burner — is part of — Gas lamp. A coal-gas burner.

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