LED lamp und piston pump: was sie gemeinsam haben
- Schritt 1. LED lamp — entwickelte sich aus — Incandescent light bulb. It replaced incandescent bulbs.
- Schritt 2. Incandescent light bulb — nutzt — Vacuum. The bulb was evacuated so the filament would not burn out.
- Schritt 3. Vacuum — wird verwendet in — Newcomen engine. Condensing the steam creates a vacuum under the piston.
- Schritt 4. Newcomen engine — hat als Teil — Piston pump. The beam drove a mine pump.