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Geissler, Johann Heinrich Wilhelm

Geissler, Johann Heinrich Wilhelm

This article has been reviewed by the following Topic Editor: Tom Lawrence

Johann Heinrich Wilhelm Geissler (1814-1879), the German physicist and glassblower for whom the Geissler (mercury) pump (1855) and the Geissler tube (1857) are named. The mercury vacuum pump contributed to the success of Thomas Edison's first incandescent lamps in 1879. The sealed glass tubes that bear his name are still in use today because they illustrate the luminous effects of discharges through rarefied gases.

Geissler's glass tube lamp Geissler's glass tube lamp

Geissler's tubes incorporated combinations of attractive shapes such as bells, bubbles, curlicues, twists, and bends, and they emitted brilliant and colorful fluorescent light when passed though by high voltage. These vacuum discharge tubes played an important role in the experimental course of physics. His other contributions include a vaporimeter, mercury air pump, balances, normal thermometer, and areometer.

 

Further Reading
Geissler - Biography (Hebrew University of Jerusalem, Institute of Chemistry)
Geissler Tubes (Kenyon College, Physics Department)

Citation

Cutler J. Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Geissler, Johann Heinrich Wilhelm". 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 August 22, 2008; Last revised Date August 22, 2008; Retrieved May 23, 2013 <http://www.eoearth.org/article/Geissler,_Johann_Heinrich_Wilhelm>

The Author

Cutler J. Cleveland Cutler J. Cleveland  is Professor of Earth and Environment at Boston University, where he also is on the faculty of the Center for Energy and Environmental Studies. Professor Cleveland is Editor-in-Chief of the Encyclopedia of Energy (Elsevier, 2004), winner of an American Library Association award, the Dictionary of Energy (Elsevier, 2005), Handbook of Energy (Elsevier, forthcoming), and is the Founding Editor-in-Chief of the Encyclopedia of Earth.  He is the recipient of the Adelma ... (Full Bio)

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