Laboratory & educational products

Canfort Laboratory and Education Supplies Co., Ltd.


Magdeburg Hemispheres

  • Product item:ET029
  • Product price:US $ 7 / Piece
Magdeburg Hemispheres for Atmospheric Pressure Experiment

Unit price: US $ 7 / Piece
Delivery fee is not included

The Magdeburg hemispheres are a pair of large copper hemispheres, with mating rims. They were used to demonstrate the power of atmospheric pressure. When the rims were sealed with grease and the air was pumped out, the sphere contained a vacuum and could not be pulled apart by teams of horses. The Magdeburg hemispheres were designed by a German scientist and mayor of Magdeburg, Otto von Guericke, to demonstrate the air pump that he had invented, and the concept of atmospheric pressure. The first artificial vacuum had been produced a few years earlier by Evangelista Torricelli, and had inspired Guericke to design the world's first vacuum pump, which consisted of a piston and cylinder with one-way flap valves. The hemispheres became popular in physics lectures as an illustration of the strength of air pressure, and are still used in education. A pair of the original hemispheres are preserved in the Deutsches Museum in Munich.

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Magdeburg Hemispheres
Magdeburg Hemispheres
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