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Regensburg Demonstration
- When
- May 8, 1654
- Where
- Regensburg
Guericke demonstrated atmospheric pressure in Regensburg before the Imperial Diet and Emperor Ferdinand III on May 8, 1654.
The experiment involved large copper hemispheres sealed with grease. After the air was pumped out, thirty horses in two teams of fifteen could not separate them. The demonstration proved the power of atmospheric pressure to a high-level political audience.
Sources
- Magdeburg hemispheres Wikipedia, revision of 2026-09-02
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