AEROSTATICS
Hand vacuum pump HG0078
A hand pump equipped with two nozzles. One of them is used to pump out the air to create a vacuum, while the other nozzle generates overpressure, which will allow air to be pumped into, for example, a balloon. Connection with HG0077 Vacuum bell jar. • the inner diam. of the cylinder 2,25 cm • length: 20 cm, nozzles: outer diam.: 0,9 cm • hand grip: diam.: 2,8 cm, length: 10 cm • material: steel, plastic, wood • max. pressure: ≤ 6,7 × 103 Pa (500 mmHg), min. pressure: 2,9 × 105 Pa (3 kg/cm 2 ) • hose: 30 cm long
Vacuum bell jar HG0077
A vacuum bell jar for experiments in low pressure conditions; made of transparent plastic cloche and a base with a rubber sealing ring. It has an electric bell and a hand pump.
• base 19 x 25 cm • cloche D 15 cm • material: plastic • age: 14+
Boyle’a-Mariotte’s law demonstration model HG0096
Pascal’s pressure sphere demonstration model HG0099
Archimedes’ Law. Demonstration set QH0003
The device demonstrates Boyle’s law i.e. it shows a relationship between the pressure and volume of air at a constant temperature. The user can experiment with the elasticity of a measured amount of gas. Turning the handle compresses the air. The volume, temperature and pressure can be read from the display screen on the scales. • box dim 24 x 19 x 15 cm
A device to present Pascal’s law in action. It is made of a steel sphere connected to a tubular manual pump. The sphere is pierced with small holes. After filling it with water and pushing the piston the water squirts out in even jets. • L 35 - 53 cm, sphere D 8 cm, sphere V 0,2 l • 9-10 holes
The set for demonstrating Archimedes’ law, the basic law of hydro - and aerostatics, which determines the buoyancy force. The teaching aid makes it possible to explain the principle of Archimedes’ law for bodies immersed in water. The kit includes: • main container with drainage tube - overflow container • graduated gravity container • graduated beaker with measuring cup • 10 weights • weight spring • dimensions 17,5 x 4 x 7 cm • age: 6+
Newton’s tube HG0125
An apparatus for demonstrating how the motion of objects follows Newton’s second law of motion. • size: 5,8 x 95 cm ; until end of stock • the tube contains a magnet, metal coin and a feather
Magdeburg hemispheres QH2115
atmospheric pressure when the two elements are pressed together so that the rims fit together and the air is next sucked out. • D 12 cm; made of plastic and rubber
2 hemispheres, with handles attached, for demonstrating the operation of
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