The Vacuum
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Gasparo Berti, 1641 |
Vincenzio Viviani & |
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Blaise Pascal, 1647Public experiment comparing water and wine in equilibrium with atmospheric pressure (1647, Rouen glass factory). [Westfall 1977, p. 45.] References
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Otto von Guericke, 1654
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Two copper bowls would be joined to form a hollow sphere. After the air was removed from this sphere, two teams of horses were hitched to pull on the two bowls in order to separate them which they would fail to do. When air was again allowed into the sphere, the bowls would come apart by themselves. |
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"Finally, the eights were hooked and, as 16 horses
pulled against each other, the hemispheres held and again Guericke's
theory proved true. The audience was impressed; most of them believed
the draft horses would be able to separate the hemispheres." |
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Footnote
References
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Robert Boyle, 1660:
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David R. Scott, 1971
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Ewerdt Hilgemann, 1994Hilgemann creates "imploded" sculptural shapes by removing the air from simple geometric hollow constructions. By pointing to an absent vacuum, these shapes constitute unusually sharp representations of "nothing". |
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Remko Scha December 18, 2005