Difference between revisions of "Vacuum"
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| − | A '''vacuum''' is | + | A '''vacuum''' is a region in space devoid of all types of [[matter]], such as [[atom]]s and [[molecule]]s. Such a region does not transmit sound waves or conduct heat, although heat can travel through it via [[radiation]]. Vacuums have important uses for science and technology. |
While a perfect vacuum is theoretically possible, it has never been replicated in the lab. [[Blaise Pascal|Pascal]] was the first person to prove the existence of a vacuum. | While a perfect vacuum is theoretically possible, it has never been replicated in the lab. [[Blaise Pascal|Pascal]] was the first person to prove the existence of a vacuum. | ||
Revision as of 19:08, April 30, 2010
A vacuum is a region in space devoid of all types of matter, such as atoms and molecules. Such a region does not transmit sound waves or conduct heat, although heat can travel through it via radiation. Vacuums have important uses for science and technology.
While a perfect vacuum is theoretically possible, it has never been replicated in the lab. Pascal was the first person to prove the existence of a vacuum.
Source
The New American Desk Encyclopedia, Penguin Group, 1989