Biomimetics and voltaic pile: 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 — Airbag. The airbag is nylon.
4. Step 4. Airbag — uses — Chemical reaction. The gas comes from an instant reaction of sodium azide.
5. Step 5. Chemical reaction — includes — Electrolysis. Electrolysis is a chemical reaction driven by an electric current.
6. Step 6. Electrolysis — evolved from — Voltaic pile. The first electrolysis of water was powered by a voltaic pile.

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