| 单词 |
magdeburg hemispheres |
| 释义 |
Magdeburg hemispheres
| (Physics) | two hemispherical cups forming, when placed together, a cavity from which the air can be withdrawn by an air pump; - used to illustrate the pressure of the air. So called because invented by Otto von Guericke at Magdeburg. |
See also: Hemisphere |
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