Geissler tube

American  

[gahys-ler] / ˈgaɪs lər /

noun

1. a sealed glass tube with platinum connections at the ends, containing rarefied gas made luminous by an electrical discharge.

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Geissler tube British  

/ ˈɡaɪslə /

noun

1. a glass or quartz vessel, usually having two bulbs containing electrodes separated by a capillary tube, for maintaining an electric discharge in a low-pressure gas as a source of visible or ultraviolet light for spectroscopy

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Etymology

Origin of Geissler tube

1865–70; named after H. Geissler (1814–79), German inventor

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Example Sentences

See Examples For:

Geissler tube

The glow of the Geissler tube or electrically excited gas at low pressure would be an example of "electro-luminescence."

From Artificial Light Its Influence upon Civilization by Matthew Luckiesh

A condition may also appear, as is shown by Crookes' experiment, with the metallic plate intercalated as negative pole in the middle of. a Geissler tube, with the positive poles at the ends.

From Scientific American Supplement, No. 288, July 9, 1881 by Various

If a Geissler tube, the terminals of which are joined by a copper wire, be approached to the coil, certainly no one would be prepared to see the tube light up.

From The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting by Thomas Commerford Martin

Spectrum analysis is thought to confirm this view; and it is supposed the second spectrum seen in a Geissler tube belongs to gaseous carbon.

From Scientific American Supplement, No. 385, May 19, 1883 by Various

For a long time it was noticed that the phenomena in a Geissler tube changed their aspect considerably, when the gas pressure became very weak, without, however, a complete vacuum being formed.

From The New Physics and Its Evolution by Lucien Poincaré

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