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atomic clock → CapableOf → keep time	0.71
accurate atomic clock (subgroup of atomic clock) → ReceivesAction → built by louis essen	0.68
atomic clock → ReceivesAction → invented	0.61
atomic clock → HasProperty → accurate	0.59
atomic clock → IsA → a clock device	0.57
atomic clock → CapableOf → use an electron transition frequency	0.46
satellite → HasA → atomic clock	0.45
atomic clock → CapableOf → cool atom	0.43
atomic clock → HasProperty → stable	0.42
atomic clock → ReceivesAction → used in many scientific disciplines	0.25
atomic clock → AtLocation → metrology institutes	0.25
atomic clock → AtLocation → observatory	0.25
atomic clock → AtLocation → more than 30 countries	0.25
atomic clock → CapableOf → interact with dark matter	0.25
atomic clock → ReceivesAction → used to control the wave	0.16
atomic clock → ReceivesAction → detailed in paper	0.16
atomic clock → CapableOf → pave the way	0.16
atomic clock → IsA → the most accurate clocks	0.16