Kerosene lamp and autoclave: what they have in common

1. Step 1. Kerosene lamp — has part — Wick. A wick.
2. Step 2. Wick — is part of — Davy lamp. A wick.
3. Step 3. Davy lamp — is used in — Coal mine. Protection against methane explosions.
4. Step 4. Coal mine — is used in — Newcomen engine. Pumping water out of mines.
5. Step 5. Newcomen engine — was inspired by — Pressure cooker. Papin’s experiments with steam and a piston preceded Newcomen’s engine.
6. Step 6. Pressure cooker — works like — Autoclave. Papin’s digester was the prototype of the autoclave.

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