Spirit level e autoclave: o que têm em comum

1. Passo 1. Spirit level — utiliza — Universal gravitation. The bubble rises to the highest point.
2. Passo 2. Universal gravitation — é utilizado em — Hydroelectric power station. The energy of falling water.
3. Passo 3. Hydroelectric power station — funciona como — Wave power station. A wave power station, like a hydro plant, draws energy from water — waves instead of a river.
4. Passo 4. Wave power station — utiliza — Hydraulics (Pascal’s law). Hydraulic converters.
5. Passo 5. Hydraulics (Pascal’s law) — é utilizado em — Manometer. A liquid manometer is a pair of communicating vessels: the difference in levels shows the pressure.
6. Passo 6. Manometer — faz parte de — Autoclave. The gauge shows whether the steam pressure in the chamber is high enough to sterilize.

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