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Magdeburg hemispheres

Line breaks: Mag¦de|burg hemi|spheres

Entry from British & World English dictionary

Definition of Magdeburg hemispheres in English:

plural noun

A pair of copper or brass hemispheres joined to form a hollow globe from which the air can be extracted to demonstrate the pressure of the atmosphere, which then prevents them from being pulled apart.

Origin

early 19th century: named after the city of Magdeburg, home of the inventor, Otto von Guericke (1602–86).

Definition of Magdeburg hemispheres in:

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