"1879Z"^^ . "Johann Heinrich Wilhelm Gei\u00DFler (May 26, 1814 in Igelshieb \u2013 January 24, 1879) was a skilled glassblower and physicist, famous for his invention of the Geissler tube, made of glass and used as a low pressure gas-discharge tube.Geissler descended from a long line of craftsmen in the Th\u00FCringer Wald and in B\u00F6hmen. He found work in different German universities, eventually including the University of Bonn."@en . . . "Gei\u00DFler, Heinrich"@en . "1879-01-24Z"^^ . . "1814-05-26Z"^^ . . . . "1814Z"^^ . . "Physicist" . "Geissler"@en . . "Heinrich Geissler"@en .