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December 22, 2014

X-ray photograph taken by Wilhem Conrad Roentgen (1845- 1923), of his wife's hand on 22nd December 1895. Roentgen was Professor of Physics at the University of Wurzburg, and it was in 1895 that he experimented with cathode rays and made the discovery which he named X-rays: the 'X' signifying their unknown origin. The property which made X-rays so interesting was their ability to pass through matter. As a result it became possible for the first time to make visible images of the bones inside the body. This is the oldest surviving X-ray image of a part of the human body. Read more

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