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X ray
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X-ray
Britannica Concise Encyclopedia
Electromagnetic radiation of extremely short wavelength (100 nanometres to 0.001 nanometre) produced by the deceleration of charged particles or the transitions of electrons in atoms. X-rays travel at the speed of light and exhibit phenomena associated with waves, but experiments indicate that they can also behave like particles ( wave-particle duality). On the electromagnetic spectrum, they lie between gamma rays and ultraviolet radiation. They were discovered in 1895 by Wilhelm Conrad Röntgen, who named them X-rays for their unknown nature. They are used in medicine to diagnose bone fractures, dental cavities, and cancer; to locate foreign objects in the body; and to stop the spread of malignant tumours. In industry, they are used to analyze and detect flaws in structures.
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Kota Ezawa at Cheryl Haines.(photographs exhibition)
; On Dec. 22, 1895, a German physician named William Conrad Rontgen set his wife's hand on a photographic plate and made the world's first human X-ray. Seared into our collective memory, that image...
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Word watch: The origins of words.(Originated from Knight-Ridder/Tribune News Service)
; ...X ray'' stand for? A. The ``X'' in ``X ray'' was originally used to designate an unknown. On November 8, 1895, Wilhelm Conrad Rontgen was conducting an experimental investigation in Wurzburg, Germany, of the properties of cathode rays. He noticed that a...
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Functional MRI
; Medical imaging has come a long way since 1895, when German physicist Wilhelm Conrad Rontgen observed strange flickers cast by his cathode-ray instruments. Within months, Rontgen had produced an image of the bones of his...
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Becquerel's blunder.(radioactivity discovery)(Henri Becquerel)
; INTRODUCTION THE DISCOVERY BY WILHELM CONRAD RONTGEN OF X-RAYS IN LATE 1895 was the most globally astonishing scientific event prior to the atomic bombing of Hiroshima and Nagasaki...
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The X factor in X-rays. (researchers suffered health consequences)
; ...interest in radiology met in June this year at the Rontgen's Centenary Congress in Birmingham to celebrate Professor Wilhelm Conrad Rontgen's discovery of the X-ray in Germany on November 8th, 1895. Today, modern radiological practice is multi-disciplinary. The...
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Toshiba displays X-ray expertise: a century after Wilhelm Conrad Rontgen successfully transferred an X-ray image to film (1895), Toshiba has developed technology to create dynamic digital X-ray images. Koyama Katsuhiko reports on the clinical and economic benefits the new X-ray flat panel detector will bring. (New Technology).(Toshiba Corp. innovation)(Brief Article)
; IN 1953, Westinghouse released the first commercial image intensifier, a vacuum tube that changes X-rays to visible light rays. Early in the 1960s, technology for displaying these images in real time with a television camera was put on the market. These developments resulted in a great leap forward
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Celebrating the naming of element 111.(IUPAC Wire: News and information on IUPAC, its fellows, and member organizations)
; ...Darmstadt, Germany, to celebrate the naming of element 111. The name of the element, which was discovered at GSI, honors Wilhelm Conrad Rontgen, the discoverer of the Rontgen rays (X-rays) for which he received the first Nobel Prize in Physics. Federal Minister for...
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True or false: Do you want to be a German? Test adds an edge to citizenship debate
; ...didn't know that the National Assembly was the convention that gathered in 1848, or that the 1895 scientist was Wilhelm Conrad Rontgen, you might not be able to become a German citizen not at least if a proposed citizenship test for foreigners is adopted...
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A ray of light in a century of darkness
; ...flickers of light on a fluorescent screen in his laboratory, some distance from the experiment he was working on. Wilhelm Conrad Rontgen had discovered X-rays. During this century, his discovery has saved thousands of lives, not just by the power of this "invisible...
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Honour for X-ray pioneer who paid ultimate price
; ...Infirmary in 1896 - the year after a new scientific era dawned with the discovery of X- rays by the Prussian physicist Wilhelm Conrad Rontgen. One of the first X-ray images produced by Pirie illustrated a broken bone in the elbow of a 32-year-old Dundonian, who...
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