Who is wilhelm von roentgen

Wilhelm Roentgen. Reference article, Radiopaedia. URL of Article. On this page:. Riesz PB. The life of Wilhelm Conrad Roentgen. Adrian M. Thomas, Arpan K. The History of Radiology. Density functional theory-based prediction of some aqueous-phase chemistry of superheavy element Roentgenium I is the "softest" metal ion. Banerjee AK. An inspiring visit to Roentgen's birthplace. Rad Magazine Jan Reprinted Deutsche Roentgen Museum, Germany.

Newsletter Ewen Adair Whitaker. Mapping and Naming the Moon. Gerd Rosenbusch Annemarie de Knecht-van Eekelen. Related articles: History of radiology. Promoted articles advertising. Lenard himself was an early member of the Nazi party, and a staunch anti-semite, central in the purging of the german scientist field of Jews including the likes of Einstein.

Lenard, hoping to demonstrate the photographic effects of cathode rays, used a tube wrapped in zinc relatively impermeable to X-rays , and a plate coated in keton inorganic substance which does not fluoresce in the presence of X-rays. This difference however meant, that the subtle X-rays emitted were able to penetrate the cardboard casing, and cause the plate to fluoresce! Avid traveller, yoga teacher, polylinguist with a passion for discovering cultures. This site uses Akismet to reduce spam.

Learn how your comment data is processed. One is easily convinced, that the cause of the fluorescence is coming from the discharge apparatus… 2.

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Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. Missing the superb research facilities to which he had become accustomed in Strasbourg, however, he returned there in as associate professor of physics. Three years later he was appointed professor of physics at the University of Giessen in Germany, where he remained until Probably his most significant contribution during this period was a continuation of research originally suggested by James Clerk Maxwell's theory of electromagnetism.

That theory had predicted that the motion of a dielectric material within an electrostatic field would induce a magnetic current within the dielectric material. Much of the fundamental research on this topic had been carried out in the s by the English physicist William Crookes. Crookes had found that the discharge of an electrical current within a vacuum tube produces a beam of negatively charged rays that causes a fluorescence on the glass walls of the tube.

A number of scientists had followed up on this research, trying to discover more about the nature and characteristics of Crookes's cathode rays. When he turned on the apparatus, he happened to notice that a screen covered with barium platinocyanide crystals about a meter from the vacuum tube began to glow. It was not they, therefore, that caused the screen to glow.

He discovered that its effect could be detected at great distances from the vacuum tube, suggesting that the radiation was very strong. He learned that the radiation passed easily through some materials, such as glass and wood, but was obstructed by other materials, such as metals.

At one point, he even saw the bones in his hand as he held out a piece of lead before it. He also discovered that the radiation was capable of exposing a photographic plate.

Six days earlier, he had made the world's first X-ray photograph, a picture of his wife's hand.