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File: First medical X-ray by Wilhelm Röntgen of his wife Anna Bertha Ludwig's hand - 18951222.jpg
Wilhelm Conrad Röntgen (/ ˈ r ɛ n t ɡ ə n,-dʒ ə n, ˈ r ʌ n t-/; [4] German: [ˈvɪlhɛlm ˈʁœntɡən] ⓘ; often rendered Roentgen in English; 27 March 1845 – 10 February 1923) was a German physicist, [5] who, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays, an achievement that earned him the inaugural ...
X-rays can penetrate many solid substances such as construction materials and living tissue, and X-ray radiography is widely used in medical diagnostics. This medical significance was noticed by Röntgen shortly after he discovered X-rays; this print, titled Hand mit Ringen (Hand with Rings), is a print of his first medical X-ray, taken of his ...
First medical X-ray by Wilhelm Röntgen of his wife Anna Bertha Ludwig's hand. 5 May – German football club Fortuna Düsseldorf is founded. 8 November – Wilhelm Röntgen produces and detects electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays; 15 December – German football club Eintracht Braunschweig is founded.
Elizabeth Fleischman, American X-ray pioneer (1899) Elizabeth Fleischman-Aschheim ( née Fleischman 5 March 1867 – August 3 1905) was an American radiographer who is considered an X-ray pioneer. Fleischman was the first woman to die as a result of X-ray radiation exposure.
Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. William Coolidge explains medical imaging and X-rays.. An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.
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The roentgen or röntgen (/ ˈ r ɛ n t ɡ ə n,-dʒ ə n, ˈ r ʌ n t-/; [2] symbol R) is a legacy unit of measurement for the exposure of X-rays and gamma rays, and is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air (statcoulomb per kilogram).