Canning and newcomen engine: what they have in common

1. Step 1. Canning — uses — Pasteurization. Sterilization by heat.
2. Step 2. Pasteurization — uses — Heat transfer. The product is heated to 60–70 °C.
3. Step 3. Heat transfer — is used in — Davy lamp. The gauze draws off heat and stops the flame.
4. Step 4. Davy lamp — is used in — Coal mine. Protection against methane explosions.
5. Step 5. Coal mine — is used in — Newcomen engine. Pumping water out of mines.

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