Results for "Inventions"
Program/Project Records, 1989-2017
- Date: 1989 1989-2017
- Creator: Lemelson Center
Installation View of Smithsonian Photography Exhibition, c. 1913
- Date: 1913 c 1913
- Creator: Smillie, T. W (Thomas William) 1843-1917
Reconstruction of Joseph Henry's Original Oscillating Electromagnet Motor
- Date: c. 1830s
- Creator: Unknown
- Creator: Unknown
Notes on the Operation of Telegraph Lines
- Date: c. 1850
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Sketch of Henry Magnet
- Date: 1857
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
SAO Equipment Outside Smithsonian Institution Building
- Date: 1931
- Creator: Unknown
- Creator: Unknown
Joseph Henry's Albany Magnet with its Battery and Apparatus for Measuring its Strength
- Date: 1831
- Creator: Unknown
- Creator: Unknown
Secretary Abbot Carrying the Radiometer up Mount Wilson
- Date: c. 1930?
- Creator: Unknown
- Creator: Unknown
Letter from Alfred Vail to Samuel Morse, January 11, 1857
- Date: January 11, 1857 19th century
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Smithsonian Replica of Joseph Henry's Princeton Oscillating Electromagnet Motor
- Date: c. 1830s
- Creator: Unknown
- Creator: Unknown
Sketch of Joseph Henry's More Powerful Magnet
- Date: 1857
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
Joseph Henry Electromagnet
- Date: c. 1978
