Latent heat and voltaic pile: what they have in common

1. Step 1. Latent heat — is used in — Bubble chamber. A particle leaves a trail of boiling bubbles.
2. Step 2. Bubble chamber — is made of — Hydrogen. The working medium is superheated liquid hydrogen.
3. Step 3. Hydrogen — uses — Electrolysis. Hydrogen is produced by 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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