Object Details
- Subject
- Abbot, C. G (Charles Greeley) b. 1872
- South Yard
- Category
- Historic Images of the Smithsonian
- 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.
- 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
- c. 1940
- Standard number
- SIA2007-0180
- Restrictions & Rights
- No restrictions
- Physical description
- Number of Images: 1; Color: Black and white; Size: 7.9w x10h; Type of Image: Person Medium: Photographic Print
- Smithsonian Archives - History Div
- Topic
- Scientific apparatus and instruments
- Instruments
- Solar radiation
- Solar energy--Research
- Astrophysicists
- Pyrheliometers
- Observatory equipment
- Secretaries
- Astrophysics
- Solar energy
- Secretariats
- Silver Disk Pyrheliometer
- Record ID
- siris_sic_11877
