Assertion: atomic clock | /r/HasProperty | built
Facets:
value: by measuring their vibrational frequency
type: MANNER
value: better
type: DEGREE
value: overall than another clock
type: OTHER
Source sentences:
text: It was not very accurate, but it proves that atomic clocks can be built.
text: The first atomic clock was built using microwave resonance in ammonia molecules for the frequency standard.
text: If they sound better at all in a system it’s just because they are better built overall than another clock, not because they are better for audio.
text: Atomic clocks are built according to the behaviour of either strontium or caesium, by measuring their vibrational frequency as they oscillate back and forth between two different energy levels hundreds of trillions times each second.