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Magdeburg Hemispheres. This model is used to show that atmospheric pressure is equal in all directions. It was invented by Otto Von Guericke, of Magdeburg - hence the name.

Magdeburg Hemispheres

Magdeburg Hemispheres. This model is used to show that atmospheric pressure is equal in all directions.…

Two hemispheres which can be exactly fitted on each other; their exact adjustment is further assisted by a projecting internal rim, with is smeared with lard.

Magdeburg Hemisphere

Two hemispheres which can be exactly fitted on each other; their exact adjustment is further assisted…