Nichrome and voltaic pile: what they have in common

1. Step 1. Nichrome — is made of — Nickel. Nickel.
2. Step 2. Nickel — is material for — Electrolyser. The electrodes are nickel.
3. Step 3. Electrolyser — uses — Electrolysis. Electrolysis of water.
4. Step 4. Electrolysis — evolved from — Voltaic pile. The first electrolysis of water was powered by a voltaic pile.

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