Tag «X-ray»

How X-rays see through your skin – Ge Wang

How X-rays see through your skin – Ge Wang

In 1895, a physicist named Wilhelm Roentgen was doing experiments with a cathode tube, a glass container in which a beam of electrons lights up a fluorescent window. He had wrapped cardboard around the tube to keep the fluorescent light from escaping, when something peculiar happened. Another screen outside the tube was glowing. In other …