Water wheel und mechanical clock: was sie gemeinsam haben

1. Schritt 1. Water wheel — nutzt — Gravity flow. Falling or flowing water turns the wheel.
2. Schritt 2. Gravity flow — wird verwendet in — Water clock (clepsydra). Water flows out at a constant rate under gravity.
3. Schritt 3. Water clock (clepsydra) — entwickelte sich zu — Mechanical clock. Mechanical clocks replaced water clocks, swapping the flow of water for an escapement.

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