Identified! [Charles Greeley Abbot, astrophysicist and Secretary of the Smithsonian, with his device: a silver-disc pyrheliometer which measures direct beam solar irradiance] (LOC)
| Uploaded by | The Library of Congress |
|---|---|
| License | No known copyright restrictions |
| Comments | 11 |
| Favorites | 66 |
| Views | 28,809 |
| Date taken | 1913 |
| Date uploaded | 2015-10-02 |
| Tags | libraryofcongress, dc:identifier=httphdllocgovlocpnphec04702, xmlns:dc=httppurlorgdcelements11, solarconstant, charlesgreeleyabbot, pyroheliometer, mysterysolved |
| Visibility | public |