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A Geissler tube is a precursor to modern gas discharge tubes, demonstrating the principles of electrical glow discharge, akin to contemporary neon lights, and central to the discovery of the electron.[1]: 67 This device was developed in 1857 by Heinrich Geissler, a German physicist and glassblower. A Geissler tube is composed of a sealed glass cylinder of various shapes, which is partially evacuated and equipped with a metal electrode at each end. It contains rarefied gases—such as neon or argon, air, mercury vapor, or other conductive substances, and sometimes ionizable minerals or metals like sodium. When a high voltage is applied between the electrodes, there is an electric current through the tube, causing gas molecules to ionize by shedding electrons. The free electrons reunite with the ions and the resulting energic atoms emit light via fluorescence, with the emitted color characteristic of the contained material.
Colorful decorative Geissler tubes were made in many artistic designs around the turn of the century, to demonstrate the new technology of electricity. Simple straight ones were used as high voltage sensors in physics experiments. The technology of gas-discharge lighting pioneered in Geissler tubes evolved around 1910 into commercial neon lighting, seen today.
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A Geisslertube is a precursor to modern gas discharge tubes, demonstrating the principles of electrical glow discharge, akin to contemporary neon lights...
of electrons, were discovered. Developed from the earlier Geisslertube, the Crookes tube consists of a partially evacuated glass bulb of various shapes...
experiment with a Geisslertube was Julius Plücker, who systematically described in 1858 the luminescent effects that occurred in a Geisslertube. He also made...
evolution of the earlier Geisslertube, which is a sealed glass tube containing a "rarefied" gas (the gas pressure in the tube is well below atmospheric...
tried to photograph Mark Twain illuminated by a Geisslertube, an earlier type of gas discharge tube. The only thing captured in the image was the metal...
Johanna Quaas (IPA: [joˈhana ˈkvaːs]; née Geißler IPA: [ˈgaɪsˌlɐ]; born 20 November 1925) is a German gymnast who, on 12 April 2012, was certified by...
Geissler sucked even more air out with an improved pump, to a pressure of around 10−3 atm and found that, instead of an arc, a glow filled the tube....
ultraviolet light and very little visible light Geisslertube – Early gas-discharge lamp Moore tube – American electrical engineer and inventor (Obsolete)...
modern kerosene lamp. 1856 glassblower Heinrich Geissler confines the electric arc in a Geisslertube. 1867 Edmond Becquerel demonstrates the first fluorescent...
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research with evacuated tubes, such as the Geissler and Crookes tubes. The many scientists and inventors who experimented with such tubes include Thomas Edison...
Verlag. pp. 28–37. ISBN 978-3-487-16076-4. How to Make an Experimental GeisslerTube, Popular Science monthly, February 1919, Unnumbered page. Bonnier Corporation...
invents mauveine, the first synthetic dye. 1857: Heinrich Geissler invents the Geisslertube. 1857: The phonautograph, the earliest known device for recording...
resistance. Lecher and early researchers used long thin Geisslertubes, laying the glass tube directly across the line. The high voltage of early transmitters...
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illuminated from behind by a fast succession of electric flashes from a Geisslertube. Four to seven spectators could watch the images on an opal glass window...
Mathematician Emil Fischer Organic Chemist Heinrich Geißler Physicist and Inventor of the Geisslertube Reinhard Genzel Astrophysicist Felix Hausdorff Mathematician...
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comparison to similar modern devices (such as a Cathode-ray tube, Geisslertubes, Crookes tubes, and arc lamps). Norman Lockyer's passing reference to a...
behind by a fast succession of electric flashes from a synchronized Geisslertube, while the wheel was hand-cranked to rotate at a speed of approximately...
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illuminated from behind by synchronized stroboscopic flashes from a Geisslertube. In very successful presentations between 1887 and 1890, four to seven...
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a small opal-glass screen by very short synchronized flashes from a Geisslertube. He demonstrated his photographic motion from March 1887 until at least...
resonant transformer tuned to the transmitter's frequency, which lighted a Geisslertube. This system, patented by Tesla on September 2, 1897, was the first...