Wilhelm Röntgen - German Physicist
(1845-1923)

November 8, 1895
Röntgen was working with a covered cathode ray tube in a darkened room in his lab at the University of Würzburg. When the tube was turned on, the anode end became fluorescent and a coated screen across the room glowed. He put several objects between the tube and the screen and they all appeared transparent. Röntgen concluded that a new type of ray was being emitted from the tube, which he called X-rays. Over the next several weeks, Röntgen convinced himself he was correct, and on January 1, 1896 sent out preprints of his article to many scientists.



An X-ray made in 1896 at Columbia University. The hand had been struck by buckshot.
Courtesy of the Burndy Library

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