Hydrogen car und mechanical clock: was sie gemeinsam haben

1. Schritt 1. Hydrogen car — ist eine Art von — Elektroauto. A hydrogen-powered electric car.
2. Schritt 2. Elektroauto — entwickelte sich zu — Self-driving car. Most self-driving cars are built on electric platforms.
3. Schritt 3. Self-driving car — hat als Teil — GPS (satellite navigation). Satellite navigation.
4. Schritt 4. GPS (satellite navigation) — nutzt — Atomuhr. The satellites carry atomic clocks; the position is calculated from signal arrival times.
5. Schritt 5. Atomuhr — entwickelte sich aus — Quartz clock. The quartz oscillator is tuned to an atomic standard.
6. Schritt 6. Quartz clock — entwickelte sich aus — Mechanical clock. Quartz clocks replaced mechanical ones: a vibrating quartz crystal took the place of the pendulum and balance.

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