Sujet

The two parts of a Magdeburg hemispheres

Légende

Engraving depicting the two parts of a Magdeburg hemispheres. 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. Dated 19th Century

Date

19e siècle

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP23A15_320

Licence

Droits gérés

Format disponible

60,0Mo (1,9Mo) / 25,1cm x 60,0cm / 2961 x 7084 (300dpi)

Mots clés

19th Century Engraving Engraved Illustration Illustrated Magdeburg Magdeburg Hemispheres Hemispheres Copper Mating Rims Mating Rim Vacuum Atmospheric Pressure Pressure Sealed Seal Grease Air Pumped Pump History of Physics Physics Science Scientific History of Science 19th Century