Tear de cintura e voltaic pile: o que têm em comum

1. Passo 1. Tear de cintura — utiliza — Plant fibre. Cloth is woven from threads spun from fibres.
2. Passo 2. Plant fibre — é material para — Footwear. The oldest sandals (Fort Rock) were woven from sagebrush bark.
3. Passo 3. Footwear — é feito de — Leather. Leather.
4. Passo 4. Leather — é material para — Submarine. It was covered with leather.
5. Passo 5. Submarine — tem como parte — Lead–acid battery. Underwater, electric motors run on batteries.
6. Passo 6. Lead–acid battery — evoluiu de — Voltaic pile. Planté’s battery developed the idea of a chemical current source by making it rechargeable.

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