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roentgen    
n. 人名;德国物理学家

人名;德国物理学家

roentgen
n 1: a unit of radiation exposure; the dose of ionizing
radiation that will produce 1 electrostatic unit of
electricity in 1 cc of dry air [synonym: {roentgen}, {R}]
2: German physicist who discovered x-rays and developed
roentgenography (1845-1923) [synonym: {Roentgen}, {Wilhelm Konrad
Roentgen}, {Rontgen}, {Wilhelm Konrad Rontgen}]


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  • Roentgen (unit) - Wikipedia
    The roentgen or röntgen ( ˈrɛntɡən, - dʒən, ˈrʌnt - ; [2] symbol R) is a legacy unit of measurement for the exposure of X-rays and gamma rays, and is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air (statcoulomb per kilogram) In 1928, it was adopted as the first international measurement quantity for ionizing
  • Wilhelm Röntgen - Wikipedia
    Wilhelm Conrad Röntgen[a] (27 March 1845 – 10 February 1923) [3] was a German experimental physicist who produced and detected electromagnetic radiation in a wavelength range known as X-rays (known as Röntgen rays in many languages) In 1901, Röntgen became the first recipient of the Nobel Prize in Physics "in recognition of the extraordinary services he has rendered by the discovery of
  • Wilhelm Conrad Röntgen – Biographical - NobelPrize. org
    Wilhelm Conrad Röntgen was born on March 27, 1845, at Lennep in the Lower Rhine Province of Germany, as the only child of a merchant in, and manufacturer of, cloth His mother was Charlotte Constanze Frowein of Amsterdam, a member of an old Lennep family which had settled in Amsterdam When he was three years old, his family moved to Apeldoorn in The Netherlands, where he went to the
  • Wilhelm Conrad Roentgen | Biography, Discovery, X-Rays, Facts . . .
    Wilhelm Conrad Röntgen was a physicist who received the first Nobel Prize for Physics, in 1901, for his discovery of X-rays, which heralded the age of modern physics and revolutionized diagnostic medicine Röntgen studied at the Polytechnic in Zürich and then was professor of physics at the
  • History Today: How a German scientist accidentally . . . - Firstpost
    Here’s a closer look at all that has happened on this day X-rays were discovered It was November 8, 1895, when German physicist Wilhelm Conrad Röntgen made a discovery that would forever transform medicine and science Late one night in his lab at the University of Wurzburg, Rontgen was experimenting with cathode rays using a tube that he had carefully wrapped in black cardboard to block
  • How Röntgen accidentally discovered x-rays changed the world
    “Emperor William had Prof Roentgen to rush from Würzburg to Potsdam to give an illustrated lecture to the royal family on his alleged discovery of how to photograph the invisible,” the article said Around the world, Röntgen’s discovery enthused physicians who almost immediately began to use x-rays for diagnostic purposes
  • The Existential Horror Created by the First X-Ray Images
    The potential medical applications are why Wilhelm Roentgen decided not to patent X-rays The technology was quickly put to use by both the medical community and the general public
  • Roentgen | X-ray, Imaging, Diagnosis | Britannica
    Roentgen, unit of X-radiation or gamma radiation, the amount that will produce, under normal conditions of pressure, temperature, and humidity, in 1 kg (2 2 lbs) of air, an amount of positive or negative ionization equal to 2 58 × 10−4 coulomb It is named for the German physicist Wilhelm Conrad
  • X-Ray History: How Wilhelm Roentgen Discovered How to See . . . - TIME
    Jan 5, 1896: An Austrian newspaper reports Wilhelm Roentgen’s discovery of a new type of radiation, which becomes known as an X-ray
  • Wilhelm Conrad Röntgen – Facts - NobelPrize. org
    The Nobel Prize in Physics 1901 was awarded to Wilhelm Conrad Röntgen "in recognition of the extraordinary services he has rendered by the discovery of the remarkable rays subsequently named after him"





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