In the experiment of Rontgen began using cathode ray generator through pipe glass vacuum. He found that the light green light to run against the pipe wall, he found that the light from the cathode ray generator this through various materials.Several other types in front of this machine, and he found. He can be taken to see the scheme of bone that his hand on the wall. Two months later he started the research. The proof and published in 1896 in the report name On a New Kind of Radiation