wilhelm konrad roentgen मीनिंग इन हिंदी

In 1895, when the German physicist Wilhelm Konrad Roentgen discovered the penetrating properties of X-rays, he at first did not believe his own eyes.
One hundred years ago in Wurzburg, Germany, a dedicated scientist named Wilhelm Konrad Roentgen came to the realization that his wife was concerned that he was driving himself too hard.