X-rays that can penetrate the human body

"X-ray", also known as "Roentgen ray", is used by modern medicine to see through the human body or take pictures of it to show the structure of bones or internal organs, find abnormal phenomena and facilitate treatment. Before the discovery of Roentgen ray, doctors always asked, listened, looked and felt exactly the same. However, there are many causes born in internal organs, which are invisible and invisible. Of course, it is difficult to carry out targeted treatment. Since the discovery of Roentgen ray, doctors have been given a pair of eyes that can see through the human body, which is really a big leap in medicine.

Who discovered this precious ray? It's German scientist wilhelm rontgen. /kloc-one day in 0/895, roentgen accidentally put a package of unexposed photographic negatives sealed with black paper near the cathode ray discharge tube when he was doing the experiment. Later, when he developed the film, he found that the film had run away. For a casual person, it will say, "I ran away this time. Just be careful next time!" " "But Roentgen is not the case. He has a serious habit of tracing back to the source. He didn't let go of this clue and continued the experiment. He was surprised to find that even if a piece of cardboard was used to block the sealed photographic film, it would still run away. His conclusion is that the cathode ray discharge tube emits strong radiation in some way, which can penetrate substances such as card paper. Then he experimented again and again. Finally, he found that this strange ray can penetrate people's clothes, meat and bones. He named this ray "X-ray", that is, unknown ray. This light is similar in nature to light waves. Later, in order to commemorate Roentgen's great contribution, people called "X-ray" Roentgen ray.