Chemical reactor vessel and bicycle: what they have in common

1. Step 1. Chemical reactor vessel — is part of — Chemical plant. The vessel where the reaction takes place.
2. Step 2. Chemical plant — uses — Sulfuric acid. The first chemical plants produced sulfuric acid and soda.
3. Step 3. Sulfuric acid — is used in — Lead–acid battery. The electrolyte.
4. Step 4. Lead–acid battery — evolved into — Lithium-ion battery. The lithium-ion battery is the next generation of rechargeable chemical current sources, with higher specific energy.
5. Step 5. Lithium-ion battery — is part of — Electric bicycle. A battery.
6. Step 6. Electric bicycle — evolved from — Bicycle. A bicycle with an electric drive.

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