Results for "Educators"
Secretary Abbot Carrying the Radiometer up Mount Wilson
- Date: c. 1930?
- Creator: Unknown
- Creator: Unknown
- SI History Bibliography
Reaching Toward Space
- Date: February 2001
- Creator: Crouch, Tom D
- Creator: Crouch, Tom D
Orville Wright and H. Rinehart with Dayton-Wright DeHavilland 4
- Creator: Unknown
- Creator: Unknown
Alexander Graham Bell Demonstrates Telephone for Joseph Henry's Family
- Date: January 13, 1877
Thomas Edison Demonstrates Telephone and Phonograph to National Academy of Sciences
- Date: April 1878
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
Alfred Vail's Electromagnetic Telegraph Notes
- Date: 1848
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Joseph Henry Constructs Large Electromagnet for Yale College Professor Benjamin Silliman
- Date: January 15, 1831
Morse Claims Henry's Work in Electromagnetism Did Not Contribute to Invention of Telegraph
- Date: July 19, 1854
Cover of Alfred Vail's Experiment Notebook
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
