Brine-soaked cloth discs e submarine: o que têm em comum

1. Passo 1. Brine-soaked cloth discs — faz parte de — Voltaic pile. Cloth soaked in brine.
2. Passo 2. Voltaic pile — evoluiu para — Lead–acid battery. Planté’s battery developed the idea of a chemical current source by making it rechargeable.
3. Passo 3. Lead–acid battery — faz parte de — Submarine. Underwater, electric motors run on batteries.

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