Nikola Tesla film in his laboratory in previous experiments (later identified as ""Roentgen rays"" or "X-Rays"). His early experiments were with Crookes tubes, a cold cathode electrical discharge tube. Tesla may have inadvertently captured an X-ray image—predating, by a few weeks, Wilhelm Röntgen's December 1895 announcement of the discovery of X-rays when he tried to photograph Mark Twain illuminated by a Geissler tube, an earlier type of gas discharge tube. The only thing captured in the image was the metal locking screw on the camera lens. In March 1896, after hearing of Wilhelm Röntgen's discovery of X-ray and X-ray imaging (radiography), Tesla
Wilhelm Stier - 1999, Professor at the Techical University of Graz, Austria Wilhelm Stier - Familytree - Family member. Wilhelm Stier Wilhelm Stier (born May 8, 1799 in Błonie near Warsaw, died September 19, 1856 in Schöneberg, full name: Friedrich Ludwig Wilhelm Stier) was a German architect and university teacher at the Berlin Bauakademie. Wilhelm Stier was born the son of Christiane Eleonora Stiers 1766 - & Friedrich Ludewik Stier 1765 - 1815 a German postmaster & taxman in the then Prussian province of South Prussia & then Wilhelms family moved to Silesia. Wilhelm Stier was Grand son to Medical Officer /