Baroscope

Baroscope Beam balance on base with suspended polystyrene ball and adjustable counterweight for demonstrating buoyancy on a body due to atmospheric pressure. At a state of equilibrium a Baroscope is placed in a vacuum bell jar under atmospheric pressure. The air in the bell jar is then evacuated the Styrofoam sphere falls on account of the reduction in lift. Styrofoam sphere: 50 mm dia. Base: 120x90 mm² Height: 125 mm