Results for "Washington (D.C.)"
- SI History Chronology
Joseph Henry Endorses Hayes' Arctic Expedition
- Date: March 16, 1860
Roy Clarke Using a Microbalance
- Date: c. 1960-1962
- Creator: Unknown
- Creator: Unknown
Dr. Earl S. Johnston
- Date: 1936
- Creator: Unknown
- Creator: Unknown
Electromagnet Made by Joseph Henry
- Date: 1978
- Creator: Unknown
- Creator: Unknown
Super-Schmidt Camera Installation in New Mexico
- Date: c. 1960
- Creator: Unknown
- Creator: Unknown
Constructing 84-foot Radio Telescope
- Date: c. 1968
- Creator: Smithsonian Astrophysical Observatory
- Creator: Smithsonian Astrophysical Observatory
Walter Munn and the K-50 Geodetic Camera
- Date: c. 1970
- Creator: Smithsonian Astrophysical Observatory
- Creator: Smithsonian Astrophysical Observatory
John Sager Measuring Lettuce Leaf Area
- Date: 1980
- Creator: Hofmeister, Richard K
- Creator: Hofmeister, Richard K
Vertebrate Paleontology Exhibit, Conference on Future
- Date: 1927
- Creator: Unknown
- Creator: Unknown
- Online Publications
Joseph Henry's Contributions to the Electromagnet and the Electric Motor
- Date: 1999-2007
- Creator: Sherman, Roger
- Creator: Sherman, Roger
- SI History Bibliography
Joseph Henry: Inventor of the Telegraph?
- Date: 1999-2007
- Creator: Hochfelder, David 1965-
- Creator: Hochfelder, David 1965-
Dr. Anson Hines
- Date: 1986
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
