Results for "Smithsonian Institution. Assistant Secretary for Science"
Sketch of Joseph Henry's More Powerful Magnet
- Date: 1857
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
Smithsonian Replica of Joseph Henry's Princeton Oscillating Electromagnet Motor
- Date: c. 1830s
- Creator: Unknown
- Creator: Unknown
- SI History Chronology
Joseph Henry Achieves Faraday Effect
- Date: December 30, 1845
Sketch of "Telegraph" Joseph Henry Showed his Classes at the Albany Academy
- Date: 1857
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
Joseph Henry's Letter to James Lenox (March 18, 1845)
- Date: March 18, 1845
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
Drawing of the Electromagnetic Telegraph and Alpha Code
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Alfred Vail's Drawing of Many Circuits with One Battery
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Sketch of Circuits Using One Battery
- Date: April 15, 1844
- Creator: Vail, Alfred,Morse, Samuel Finley Breese 1791-1872
- Creator: Vail, Alfred,Morse, Samuel Finley Breese 1791-1872
Joseph Henry Advises Samuel Morse on Telegraph
- Date: February 24, 1842
Charles Phillips Letter to Joseph Henry (June 14, 1845)
- Date: June 14, 1845
- Creator: Phillips, Charles,Joseph Henry Papers Project
- Creator: Phillips, Charles,Joseph Henry Papers Project
George Mifflin Dallas' Letter to Joseph Henry (August 6, 1847)
- Date: August 6, 1847
- Creator: Dallas, George Mifflin 1792-1864,Joseph Henry Papers Project
- Creator: Dallas, George Mifflin 1792-1864,Joseph Henry Papers Project
Samuel F. B. Morse's Letter to Joseph Henry (October 17, 1846)
- Date: October 17, 1846
- Creator: Morse, Samuel Finley Breese 1791-1872,Joseph Henry Papers Project
- Creator: Morse, Samuel Finley Breese 1791-1872,Joseph Henry Papers Project
