Water cooling jacket and radio: what they have in common

1. Step 1. Water cooling jacket — is part of — Liebig condenser. An outer tube with running water.
2. Step 2. Liebig condenser — uses — Heat transfer. Cooling with water.
3. Step 3. Heat transfer — is used in — Heat sink. Heat dissipation.
4. Step 4. Heat sink — is part of — Hi-fi amplifier. Radiators carry away heat.
5. Step 5. Hi-fi amplifier — is a kind of — Amplifier. An amplifier.
6. Step 6. Amplifier — is part of — Radio. Amplifying a weak signal.

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