Schornstein und vacuum pump: was sie gemeinsam haben

1. Schritt 1. Schornstein — ist Teil von — Steam locomotive. Smoke from the firebox leaves through the locomotive's chimney.
2. Schritt 2. Steam locomotive — hat als Teil — Watt steam engine. A steam locomotive is driven by a steam engine.
3. Schritt 3. Watt steam engine — entwickelte sich aus — Piston pump. The first steam engines (Newcomen’s) pumped water out of mines by driving pumps.
4. Schritt 4. Piston pump — entwickelte sich zu — Vacuum pump. Guericke adapted the piston pump to pump out air.

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