Von Guericke's second air pump (1656?), shown here being used to exhaust two Magdeburg hemispheres. From 'Experimental Nova' by Otto von Guericke (Amsterdam, 1672).

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., 1656?, air, archival, archive, guericke, guerickes, historical, history, physics, pneumatics, pump, science, shown, von