Results for "Electric power systems"
- Finding Aid
SIA Acc. 18-094, Science Service, Records, circa 1920s-1970s
- Date: 1920 1920-1970 circa 1920s-1970s
- Creator: Science Service
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 94-009, Smithsonian Institution Office of Design and Construction, Project Files (Microfiche and Microfilm), 1993
- Date: 1993
- Creator: Smithsonian Institution. Office of Design and Construction
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 06-063, Smithsonian Astrophysical Observatory Central Engineering Department, Contract Files, 1978-1996
- Date: 1978 1978-1996
- Creator: Smithsonian Astrophysical Observatory. Central Engineering Department
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 92-068, Smithsonian Institution Office of Design and Construction, Project Files, 1986-1987
- Date: 1986 1986-1987
- Creator: Smithsonian Institution. Office of Design and Construction
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 92-138, Smithsonian Institution Office of Design and Construction, Project Files, 1977-1992
- Date: 1977 1977-1992
- Creator: Smithsonian Institution. Office of Design and Construction
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 06-135, Science Service, Records, 1905-1973
- Date: 1905 1905-1973
- Creator: Science Service
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA RU000525, Smithsonian Astrophysical Observatory Contracts and Procurement Office, Grant Proposals, 1965-1978
- Date: 1965 1965-1978
- Creator: Smithsonian Astrophysical Observatory. Contracts and Procurement Office
- Description: Access the official records of the Smithsonian Institution and learn about its history, key events, people, and research.
- Finding Aid
SIA RU000530, Smithsonian Astrophysical Observatory Contracts and Procurement Office, Trust Fund Subcontracts, 1963-1968
- Date: 1963 1963-1968
- Creator: Smithsonian Astrophysical Observatory. Contracts and Procurement Office
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 99-150, Smithsonian Astrophysical Observatory Subcontracts and Procurement Department, Federal Subcontracts, 1979-1991
- Date: 1979 1979-1991
- Creator: Smithsonian Astrophysical Observatory. Subcontracts and Procurement Department
- Creator: Smithsonian Institution Archives
The Smithsonian Goes Telephonic in 1878!
- Date: June 28, 2018
- Creator: Pamela M. Henson
- Description: [edan-image:id=siris_sic_9592,size=200,left]Did you know the Smithsonian was an early adopter of the telephone? In June of 1878, a system of electronic bells and telephones was installed throughout the Smithsonian Castle. The system connected several workrooms and offices to provide instant communications within the building. At that time, there were only 187 telephone lines
- Document
No title found...
- Authority Record/EAC
Agency history, 1938-1995
- Date: 1938 1938-1995
- Creator: National Museum of American History (U.S.) Division of Electricity and Modern Physics