Secretary Charles G. Abbot Reading the Pyrheliometer

ID: SIA2007-0180

Creator:

Form/Genre:

Date: c. 1940

Citation: Smithsonian Institution Archives, Accession 90-105, Box 1, Folder: Abbot, C. G

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Summary

In the South Yard behind the Smithsonian Institution Building , the Fifth Secretary (1928-1944) of the Smithsonian Charles G. Abbot is taking a reading from a pyrheliometer. Charles G. Abbot was an astrophysicist and patented the pyrheliometer in 1941. A pyrheliometer is an instrument for measuring the sun's radiant energy that is received on the earth.

Subject

  • Abbot, C. G (Charles Greeley) b. 1872
  • South Yard

Category

Historic Images of the Smithsonian

Contained within

Smithsonian Institution Archives, Accession 90-105, Box 1, Folder: Abbot, C. G

Contact information

Institutional History Division, Smithsonian Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu

Date

c. 1940

Restrictions & Rights

No restrictions

Topic

  • Astrophysicists
  • Secretariats
  • Astrophysics
  • Instruments
  • Scientific apparatus and instruments
  • Observatory equipment
  • Secretaries
  • Solar energy
  • Pyrheliometers
  • Solar radiation
  • Silver Disk Pyrheliometer
  • Solar energy--Research

ID Number

SIA2007-0180

Physical description

Number of Images: 1; Color: Black and white; Size: 7.9w x10h; Type of Image: Person Medium: Photographic Print

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