Results for "Astrophysics"

1. 

   Astrophysical Observatory

   • Date: 1909

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   In the Astrophysical Observatory

   • Date: 1933

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   Astrophysical Observatory at Washington where Solar Instruments are Made and Records Studied

   • Date: 1909

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   Carrying Water for Solar Station on Mount Brukkaros S.W. Africa

   • Date: 1920 Between 1920 and 1934

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   Mount Montezuma, Chile, Site of the Best Solar Observing Station

   • Date: 1920 Between 1920 and 1934

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    View from Solar Station on Mount Brukkaros S.W. Africa

    • Date: 1920 Between 1920 and 1934

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    Solar Observing Station on Table Mountain California in Winter

    • Date: 1920 Between 1920 and 1934

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    Living Quarters at the Solar Station on Mt. Montezuma, Chile

    • Date: 1920

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    The Periodometer, a New Instrument for Analysing Solar Records

    • Date: 1930 Between 1930 and 1934

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19. 

    Expert Mechanician Making Delicate Instruments for Solar Observations

    • Date: 1930 Between 1930 and 1934

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    One of the Instruments Used to Determine Sunlight Intensity and Sky Brightness

    • Date: 1930 Between 1930 and 1934

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23. 

    Division of Radiation and Organisms Laboratory

    • Date: 1929 Between 1929 and 1934

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