Ressources
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Forensics
Living organisms
Prepared slides
Glassware
Grounded glassware
Laboratory equipment
Baroscope
Ressources
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An experiment demonstrates the upward thrust that supports a body immersed in the air.
The device consists of a balance beam carrying at one of its ends a polystyrene ball, and on the other a sliding weight to balance the balance. Once the vacuum is established, the atmospheric pressure exerted on the polystyrene ball disappears and the equilibrium is broken.