Results for "Smithsonian Astrophysical Observatory. Project Celescope"
Charles G. Abbot's Solar Panels
- Date: c. September 30, 1936
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
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
Preparations for Solar Broadcast
- Date: September 30, 1936
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
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
Preparations for Solar Broadcast
- Date: September 30, 1936
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
Samuel P. Langley
- Date: 1887
- Creator: Unknown
- Creator: Unknown
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
Samuel P. Langley
- Creator: Unknown
- Creator: Unknown
Secretary Samuel P. Langley
- Date: c. 1895
- Creator: Unknown
- Creator: Unknown
Secretary Samuel P. Langley
- Date: 1901
- Creator: Unknown
- Creator: Unknown
SI Officials at East Door to SI Building
- Date: 1915
- Creator: Unknown
- Creator: Unknown
Secretary Charles G. Abbot Reading the Pyrheliometer
- Date: c. 1940
