Results for "Washington (D.C.)"
Joseph Henry's Albany Magnet
- Date: c. 1820s
- Creator: Unknown
- Creator: Unknown
Daniel Stanley at Work
- Date: 1969
- Creator: Unknown
- Creator: Unknown
Andrew Kramer at Work at Astrophysical Observatory
- Date: c. 1940s
- Creator: Unknown
- Creator: Unknown
Keep Watching the Skies!: The Story of Operation Moonwatch and the Dawn of the Space Age
- Date: 2008
- Creator: McCray, Patrick (W. Patrick)
- Creator: McCray, Patrick (W. Patrick)
Sketch of Henry Magnet
- Date: 1857
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
Joseph Henry's Yale Magnet
- Date: 1974
- Creator: Harrell, Alfred
- Creator: Harrell, Alfred
Secretary Charles G. Abbot Reading the Pyrheliometer
- Date: c. 1940
Joseph Henry's Oscillating Electromagnet Motor
- Date: c. 1830s
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
Mark McCormick-Goodhart
- Date: 1994
- Creator: Dougherty, Harold E
- Creator: Dougherty, Harold E
S. Stillman Berry as a Young Man
- Date: c. 1905-1909
- Creator: Unknown
- Creator: Unknown
Camera Used by Smithsonian Astrophysical Observatory
- Date: c. 1960
- Creator: Unknown
- Creator: Unknown
Darius Nassiry
- Date: 1987
- Creator: Long, Eric
- Creator: Long, Eric
