Results for "Smithsonian Astrophysical Observatory. Project Celescope"
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
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
Secretary Samuel P. Langley
- Date: c. 1895
- Creator: Unknown
- Creator: Unknown
Langley's Aerodrome Shop, South Shed
- Date: 1900
- Creator: Unknown
- Creator: Unknown
Secretary Charles G. Abbot Reading the Pyrheliometer
- Date: c. 1940
