Bar (unit)
Sir William Napier Shaw introduced usage of the bar as a unit.
Published: March 30, 2010, 12:00 am
Updated: July 7, 2012, 6:49 am
This article has been reviewed by the following Topic Editors:
C Michael Hogan,
Peter Saundry
The bar is a unit of pressure established as one million dynes per square centimeter (equivalently in SI units, 100 kilopascals, or in CGS units, one megabarye). It is approximately equal to the atmospheric pressure on Earth at mean sea level. Alternatvely, bar is a unit of pressure equal to the pressure of 29.530 inches or 750.062 millimeters of mercury under the standard conditions of 0o C temperature and 9.80665 m/s2 gravitational acceleration.
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This article is written at a definitional level only. Authors wishing to expand this entry are inivited to expand the present treatment, which additions will be peer reviewed prior to publication of any expansion. |
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Citation
Steve Baum (Lead Author);C Michael Hogan, Peter Saundry (Topic Editor) "Bar (unit)". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth March 30, 2010; Last revised Date July 7, 2012; Retrieved May 22, 2013 <http://www.eoearth.org/article/Bar>
The Author
Assistant Research Scientist, Physical Section
Department of Oceanography
Texas A&M University ... (Full Bio)
The bar is a unit of pressure established as one million dynes per square centimeter (equivalently in SI units, 100 kilopascals, or in CGS units, one megabarye). It is approximately equal to the atmospheric pressure on Earth at mean sea level. Alternatvely, bar is a unit of pressure equal to the pressure of 29.530 inches or 750.062 millimeters of mercury under the standard conditions of 0o C temperature and 9.80665 m/s2 gravitational acceleration.
|
This article is written at a definitional level only. Authors wishing to expand this entry are inivited to expand the present treatment, which additions will be peer reviewed prior to publication of any expansion. |
Further reading
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