Saturday, November 8, 2008

Anniversary: X-rays

On this day in 1895, German physicist Wilhelm Roentgen discovered x-rays. He was studying the properties of electric current in gases (cathode rays) when he discovered that treated plates fluoresced when exposed to the rays emitted from the current tubes. He further discovered that objects in the path of the rays demonstrated variable permeability - allowing the image of his wife's hand shown. For his discovery, Roentgen was given the first Nobel Prize in Physics in 1901.

(image credit: the first medical x-ray, of his wife Anna Berthe Roentgen's hand)