Gas lamp und particle accelerator: was sie gemeinsam haben

1. Schritt 1. Gas lamp — entwickelte sich zu — Incandescent light bulb. Electricity displaced gas lighting.
2. Schritt 2. Incandescent light bulb — nutzt — Vacuum. The bulb was evacuated so the filament would not burn out.
3. Schritt 3. Vacuum — wird verwendet in — Particle accelerator. A vacuum chamber.

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