Object Details
- Description
- This clock was built at the U. S. Naval Observatory about 1936 as part of an experimental program to control time signals transmitted by radio. It is a quartz clock, that is, it depends on a specially cut piece of quartz crystal to keep time. The search for a better timekeeper than the best pendulum clocks led to the development of quartz-crystal clocks, the first of which telecommunications engineers at Bell Telephone Laboratories built in 1927 to monitor and control frequencies.
- Location
- Currently not on view
- Credit Line
- Transfer from U.S. Naval Observatory
- 1936
- ID Number
- ME.319994
- catalog number
- 319994
- accession number
- 240411
- Object Name
- clock
- clock, quartz
- Other Terms
- clock; Electronic (Quartz); Free-Standing Clock
- Physical Description
- metal (amplifying apparatus material)
- metal (time indicating mechanism material)
- Measurements
- overall: 44 1/2 in x 20 in x 17 1/2 in; 113.03 cm x 50.8 cm x 44.45 cm
- See more items in
- Work and Industry: Mechanisms
- Military
- Time and Navigation
- Measuring & Mapping
- National Museum of American History
- Record ID
- nmah_850827
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a6-8af5-704b-e053-15f76fa0b4fa
