Hundred and fifteen years ago when accidentally William Conrad Roentgen discovered some unknown radiations, he wouldn't have thought for a moment then of the explicit discovery he'd made. He himself was so unaware of their significance that he gave them the name X- Rays. Years later it's importance was realized and it proved to be a revolution for mankind. The ability of X-Rays to penetrate through substances and reveal their images has worked wonders for humanity. Be it the revelation of inner structure of various crystals or the area of diagnostic radiography, it has proved to be a boon. Despite of the emergence of various new and more advanced and sophisticated technologies X-Rays are still firmly holding their ground. We are very grateful to Roentgen for his serendipity and the gift he gave us.
P.S. - Though now is the time to find out a better version of x-Rays to look into the souls of human beings.