Vacuum: from art to exact science
DOI: 10.1063/1.2914357
Vacuum is derived from the Latin word vacuus meaning empty. Absolute vacuum, a space entirely devoid of matter, is a theoretical concept only, never fully achieved by man or Nature. In modern usage, the word vacuum applies to any space at less than atmospheric pressure.
More about the Authors
James M. Lafferty. General Electric Company, Schenectady, New York.