Results for "Smithsonian Astrophysical Observatory. Project Celescope"

1. 

   Preparations for Solar Broadcast

   • Date: September 30, 1936
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954

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3. 

   Preparations for Solar Broadcast

   • Date: c. September 30, 1936
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954

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5. 

   Preparations for Solar Broadcast

   • Date: September 30, 1936
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954

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7. 

   Sec. Abbot and His Solar Powered Invention

   • Date: September 30, 1936
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954

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9. SI History Chronology

   Samuel Langley Elected Third Secretary

   • Date: November 18, 1887

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11. 

    Secretary Charles G. Abbot Reading the Pyrheliometer

    • Date: c. 1940

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