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Charles Glover Barkla

Charles Glover BarklaBorn: 7-Jun-1877
Birthplace: Widnes, Lancashire, England
Died: 23-Oct-1944
Location of death: Edinburgh, Scotland
Cause of death: unspecified

Gender: Male
Religion: Methodist
Race or Ethnicity: White
Sexual orientation: Straight
Occupation: Physicist

Nationality: England
Executive summary: X-ray scattering

British physicist Charles Glover Barkla studied under J. J. Thomson, and won the Nobel Prize for Physics in 1917. In 1903 he proved that molecular weight determines how a gas scatters radiation, in 1904 he proved that x-rays are a form of electromagnetic radiation, and in 1906 he used x-ray scattering to ascertain the number of electrons in a carbon atom. His work showed that there are two types of secondary radiations emitted by substances after exposure to x-rays ("scattered" and "characteristic" radiations), helped define the laws governing x-ray scattering and the excitation of secondary rays, and made possible the subsequent study of atomic structures. He also studied x-ray fluorescence, other short-wave emissions, and the velocity of electric waves. Devoutly religious, he considered his scientific endeavors "part of the quest for God, the Creator".

Father: John Martin Barkla (chemicals executive)
Mother: Sarah Glover Barkla
Wife: Mary Esther Cowell Barkla (m. 1907, two sons, one daughter)
Son: Michael Barkla (Flight Lieutenant, d. 1943 WWII)

    High School: Liverpool Institute High School for Boys, Liverpool, England (1894)
    University: BS Physics, University of Liverpool (1898, first class)
    University: MS Physics, University of Liverpool (1899)
    Scholar: Trinity College, Cambridge University (1899-1900)
    Lecturer: King's College, Cambridge University (1900-02)
    Teacher: University of Liverpool (1902-09)
    Professor: Wheatstone Professor of Physics, University of London (1909-13)
    Professor: Natural Philosophy, University of Edinburgh (1913-44)

    Edinburgh Mathematical Society
    Royal Society 1912
    Royal Society of Edinburgh 1914
    Nobel Prize for Physics 1917
    Hughes Medal 1917
    English Ancestry
    Lunar Crater Barkla (10.7 S, 67.2 E, 42 km. diameter)

Author of books:
Notes on Practical Physics for Junior Students (1913, textbook; with George A. Carse)

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