词汇 | roentgen ray |
词源 | roentgen ray. The first Nobel Prize in physics was awarded to German scientist Wilhelm Konrad von Roentgen (Röntgen) in 1901 for his discovery of the X ray six years earlier. Roentgen called his largely accidental discovery the X ray because he was at first unable to fathom the nature of this shortwave ray; it was an unknown quantity to him and he borrowed the symbol from algebra for it. The physicist, a professor at Munich the last 20 or so years of his life, did much valuable work in thermology, mechanics, and electricity, most of it overshadowed by his great discovery. He died in 1923, aged 78. X rays are sometimes called roentgen rays in his honor today, and the fluoroscope the roentgenoscope. To roentgenize is to x-ray someone or something, which is done by roentgenologists, who take roent- genograms, or photographs made with X rays. But the use of Roentgen’s name does not end here by any means. A roentgen is a measurement unit of radiation, and a roentgenometer is an instrument used for measuring X-ray intensity. |
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