Assertion: atomic clock | /r/HasProperty | consistent
Facets:
value: compared to the earth's rotation
type: OTHER
value: simply
type: DEGREE
Source sentences:
text: For measuring the locations of spacecrafts in distant space, astronomers need their atomic clocks to be consistent to better than a billionth of a second over days and weeks.
text: Compared to the Earth's rotation, atomic clocks are simply too consistent.
text: So, how do we know atomic clocks are consistent?