Sundial und hydraulic press: was sie gemeinsam haben

1. Schritt 1. Sundial — nutzt — Euclidean geometry. The scale is marked by the angle of the shadow.
2. Schritt 2. Euclidean geometry — wird verwendet in — Weather station. Instruments are set up on a site according to a standard.
3. Schritt 3. Weather station — hat als Teil — Barometer. A barometer.
4. Schritt 4. Barometer — funktioniert wie — Manometer. Both measure pressure with a column of liquid: a barometer measures the air around us, a manometer the pressure inside a vessel.
5. Schritt 5. Manometer — nutzt — Hydraulics (Pascal’s law). A liquid manometer is a pair of communicating vessels: the difference in levels shows the pressure.
6. Schritt 6. Hydraulics (Pascal’s law) — wird verwendet in — Hydraulic press. Pascal’s law multiplies the force.

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