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Archiu:Geissler tubes.jpg

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Summary

Description
English: Color drawing of Geissler tubes lit by their own light, from an 1869 French natural philosophy book, showing some of the many fanciful shapes and colors. They were powered by high voltage from an induction coil. Invented by German glassblower Heinrich Geissler in 1857, Geissler tubes were the first gas discharge tubes and were manufactured for entertainment. Around 1910 they evolved into the first neon lights. Caption: "Electric discharge in rarefied gasses: 1.Discharge in Vapor of Alcohol. (2.3.4.5.Geissler's tubes enclosing rarefied gasses) 2.Shows Fluorescence of Sulphuret of Calcium, 4.Fluorescence of Uranium glass, 5.Shows Fluorescence of Sulphuret of Strontium, 6.Fluorescence of Uranium glass and Sulphate of Quinine".
Date published in Augustin Privat Deschanel (1869) Traité Élémentaire de Physique, Librairie L. Hachette et Cie., Paris, p. 569
Source Downloaded 2008-12-30 from Augustin Privat Deschanel, Joseph David Everett (1896) Elementary Treatise on Natural Philosophy, Part 3: Electricity and Magnetism, 13th Ed., D. Appleton & Co., New York, p.2, Plate 2, translated from Privat Deschanel's 1869 Traité Élémentaire de Physique by Joseph David Everett on Google Book. Image credited in caption to 'M. Rapine'.
Author M. Rapine
Permission
(Reusing this file)		 Public Domain in USA: Published in USA prior to 1923


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depicts English

inception English

1869

data size English

230,878 byte

height English

810 pixel

width English

1,262 pixel

media type English

image/jpeg

checksum English

b642d5eddfdf10f2ac25742a5010acb34ceb83f2

determination method or standard English: SHA-1

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actual04:32 18 gin 2009Miniatura de la versió de 04:32 18 gin 20091262 × 810 (225 kB)wikimediacommons>Chetvorno= Summary == {{Information |Description={{en|Color drawing of Geissler tubes from an 1869 French natural philosophy book. Caption: "ELECTRIC DISCHARGE IN RAREFIED GASSES. 1.Discharge in Vapor of Alcohol. (2.3.4.5.Geissler's tub

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