Frequency standard

https://www.wikidata.org/wiki/Q362396

Field Hierarchy

Parent
Physics 33M papers	Engineering 25M papers	Quantum mechanics 13.3M papers	Optics 8.1M papers
Electrical engineering 4.8M papers
Current
Frequency standard 3,096 papers
Child
NIST-7 0 papers	NIST-F1 0 papers	Atomic fountain 1 papers

Trends

Notes

History