Wilhelm Röntgen

Wilhelm Conrad Röntgen (/ˈrɛntɡən, -dʒən, ˈrʌnt-/; German: [ˈvɪlhɛlm ˈʁœntɡən]; 27 March 1845 – 10 February 1923) was a German mechanical engineer and physicist, 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 first Nobel Prize in Physics in 1901.^[2] In honour of his accomplishments, in 2004 the International Union of Pure and Applied Chemistry (IUPAC) named element 111, roentgenium, a radioactive element with multiple unstable isotopes, after him.

• http://en.wikipedia.org/wiki/Wilhelm Röntgen