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Georges Claude patents the neon discharge tube for use in advertising.
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Georges Claude
French engineer, inventor & Nazi collaborator (1870–1960)
Georges Claude was a French engineer and inventor. He is noted for his early work on the industrial liquefaction of air, for the invention and commercialization of neon lighting, and for a large experiment on generating energy by pumping cold seawater up from the depths. He has…Source: Wikipedia (CC BY-SA)
Gas-filled tube
Assembly of electrodes at either end of an insulated tube filled with gas
A gas-filled tube, also commonly known as a discharge tube or formerly as a Plücker tube, is an arrangement of electrodes in a gas within an insulating, temperature-resistant envelope. Gas-filled tubes exploit phenomena related to electric discharge in gases, and operate by…Source: Wikipedia (CC BY-SA)