VACUUMPUMP
Vacuum pump
A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity.The above text is a snippet from Wikipedia: Vacuum pump
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vacuum pump
Noun
- A piece of equipment used for extraction of gas or vapour from an enclosed space, leaving the container with a partial vacuum.
The above text is a snippet from Wiktionary: vacuum pump
and as such is available under the Creative Commons Attribution/Share-Alike License.