Distillation and headphones: what they have in common

1. Step 1. Distillation — is used in — Ethanol. It is concentrated by distillation.
2. Step 2. Ethanol — is material for — Cloud chamber. It is saturated with alcohol or water vapour.
3. Step 3. Cloud chamber — evolved into — Bubble chamber. A liquid instead of vapour.
4. Step 4. Bubble chamber — has part — Electromagnet. The field bends the tracks.
5. Step 5. Electromagnet — works like — Permanent magnet. An electromagnet attracts iron like a permanent magnet, but only while current flows.
6. Step 6. Permanent magnet — is part of — Headphones. A magnet moves the diaphragm.

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