Product Code : EL-PLE-12038
Eduscope India is a leading Magdeburg Hemispheres
Quick Answer:Magdeburg Hemispheres is a classic 70mm cast-metal apparatus that demonstrates the force of atmospheric pressure on an evacuated hollow sphere.
The set comprises a pair of cast metal hemispheres fitted with handles, together with two concave aluminium cups, that mate along their rims to form a complete hollow sphere 70mm in diameter. One hemisphere carries a handle and a stop cock, through which the enclosed air is evacuated with a vacuum pump before the demonstration. Once evacuated, there is no internal air pressure pushing outward, so atmospheric pressure acting over the sphere's entire outer surface adds up to a large net inward force holding the two halves firmly together — releasing the stop cock lets air back in and the halves separate easily again. The apparatus takes its name from a famous 1654 demonstration by German scientist Otto von Guericke in the city of Magdeburg, where teams of horses harnessed to either half could not pull an evacuated pair apart, making this physics demonstration kit India apparatus one of the best-known classroom illustrations of atmospheric pressure.
Specification
Value
Sphere diameter (mated)
70 mm
Construction
Cast metal hemispheres with handles, 2 concave aluminium cups
