Assertion: atomic clock | /r/HasProperty | based on the energy difference
Facets:
value: in a magnetic field
type: LOCATION
Source sentences:
text: Hyponyms (each of the following is a kind of "atomic clock"): ammonia clock (an atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule) caesium clock (an atomic clock based on the energy difference between two states of the caesium nucleus in a magnetic field)