page_title: Luminous discharge tubes
hierarchical_section_title: Luminous discharge tubes
caption_attribution_description: English: Author UnknownDescription English: Luminous discharge tubes. Italiano: Tubi scintillanti.Date late 18th centuryMedium glass, brass, tin foilDimensions length 332 mm, diameter 20 mm; length 300 mm, diameter 13 mmCollection Museo Galileo &#160;&#160;&#160; (Inventory)Native nameMuseo GalileoLocationFlorenceCoordinates43°&#160;46′&#160;03.92″&#160;N, 11°&#160;15′&#160;21.44″&#160;E Established1930Web pagewww.museogalileo.itAuthority control : Q1668196 VIAF:&#8201;139974525 ISNI:&#8201;0000 0000 9503 3657 LCCN:&#8201;no2010157919 WorldCat institution QS:P195,Q1668196Current location Room XIAccession number 850, 851Place of creation English?Source/Photographer Own work This file was provided to Wikimedia Commons by Museo Galileo as part of a GLAM-WIKI project with Wikimedia Italia. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. italiano&#160;| English&#160;| +/− English: Luminous discharge tubes. Italiano: Tubi scintillanti.
context_page_description: The luminous discharge tubes is part of an electric machine.
  Two small tubes, known as "electric serpents" or "fulminating tubes", were popular in the late eighteenth century because of the spectacular effect that they produced in the dark.
  The electric snake consists of two glass tubes, one inside the other. On the outside of the inner tube, a series of tin-foil patches are glued at short but equal intervals, forming a helical pattern. The outer tube is fitted with brass collars at both ends, which are in contact with the outermost patches of the helix.
  When one end of the tube is held in the hand and the other approaches the prime conductor of an electrical machine, scintillating sparks appear between each of the tin-foil patches, producing a long helix of fire.
context_section_description: The luminous discharge tubes is part of an electric machine.
  Two small tubes, known as "electric serpents" or "fulminating tubes", were popular in the late eighteenth century because of the spectacular effect that they produced in the dark.
  The electric snake consists of two glass tubes, one inside the other. On the outside of the inner tube, a series of tin-foil patches are glued at short but equal intervals, forming a helical pattern. The outer tube is fitted with brass collars at both ends, which are in contact with the outermost patches of the helix.
  When one end of the tube is held in the hand and the other approaches the prime conductor of an electrical machine, scintillating sparks appear between each of the tin-foil patches, producing a long helix of fire.
caption: Luminous discharge tubes. Lorraine collections of the Museo Galileo, Florence
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