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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
    Roentgen (unit) 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)
  • 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
  • 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 Röntgen - Biography, Facts and Pictures
    The German physicist, Wilhelm Conrad Röntgen was the first person to systematically produce and detect electromagnetic radiation in a wavelength range today known as x-rays or Röntgen rays His discovery of x-rays was a great revolution in the fields of physics and medicine and electrified the general public It also earned him the Rumford Medal of the Royal Society of London in 1896 and the
  • Discovery of X-Rays - World History Encyclopedia
    The discovery of X-rays – a form of invisible radiation that can pass through objects, including human tissue – revolutionised science and medicine in the late 19th century Wilhelm Conrad Röntgen (1845-1923
  • ROENTGEN Definition Meaning - Merriam-Webster
    The meaning of ROENTGEN is of or relating to X-rays How to use roentgen in a sentence
  • Wilhelm Röntgen (1845-1923): Biography, Accomplishments Contribution . . .
    The German physicist and mechanical engineer Wilhelm Conrad Röntgen is hailed as the first to identify electromagnetic radiation in wavelength ranges, which are now known as X-rays Even though other scientists had explored the concept of X-ray beams before Röntgen, he was the first to thoroughly investigate them Initially, he named them Roentgen rays, but he later gave them the name X-rays
  • About Röntgen – Roentgen-Memorial
    On the 27th of March 1845 at 4 pm Wilhelm Conrad Röntgen sees the light of day in Lennep As the only child of wealthy cloth merchant Friedrich Conrad Röntgen and his wife Charlotte Constanze he is raised in the Dutch City of Apeldoorn, where his family moves three years after his birth Röntgen attends several schools and then enrolls at the Swiss Federal Polytechnic School in Zürich He
  • The Accidental Discovery of X-Rays | HISTORY
    When Röntgen placed various objects, including a 1,000-page book, a double pack of cards, tinfoil, wooden boards and rubber sheets, in the path of X-rays, they passed right through, lighting up
  • What is Roentgen – Unit of Exposure – Definition
    The roentgen , abbreviated R, is the unit of radiation exposure One roentgen corresponds to 2 58E-4 coulomb per kg of ions generated in air and an exposure of one coulomb per kilogram is equivalent to 3876 roentgens





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