Results for "Smithsonian Institution. Assistant Secretary for Administration"
Joseph Henry Electromagnet Equipment - Coiled Wire
- Date: Undated
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Galvanometer
- Date: Undated
- Creator: Unknown
- SI History Chronology
Joseph Henry Builds Electromagnet for Penfield & Taft Ironworks
- Date: June-July 1831
- SI History Bibliography
"Looking Back: James H. Logan, First superintendent of the Western Pennsylvania School for the Deaf"
- Date: 1990
- Creator: Lang, Harry G
- Creator: Lang, Harry G
- SI History Chronology
Joseph Henry Demonstrates His Most Powerful Electromagnet
- Date: September 1833
Joseph Henry Electromagnet Equipment
- Date: 1950 Circa 1950s
- Creator: Unknown
Joseph Henry Electromagnet Equipment
- Date: 1950 Circa 1950s
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Albany Magnet and Armature
- Date: Undated
- Creator: Unknown
Joseph Henry Electromagnet Equipment
- Date: 1950 Circa 1950s
- Creator: Unknown
Joseph Henry Electromagnet Equipment
- Date: 1950 Circa 1950s
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Armature
- Date: Undated
- Creator: Unknown
Joseph Henry Electromagnet Equipment - First Electromagnetic Motor
- Date: Undated
- Creator: Unknown
