atomic clocks
Ultra-precise timekeepers
Atomic clocks are timekeeping devices that measure time by the vibrations of atoms, typically cesium or rubidium.
They are extraordinarily precise—accurate to within a second over millions of years—and serve as the standard for coordinated universal time.
GPS satellites, telecommunications networks, and scientific research depend on atomic clocks for synchronization.
Alkali metal, number fifty-five
- accuracyDegree of correctness
- synchronizationAligning timing across systems
- calibrationAdjusting for measurement accuracy
- stabilityResistance to displacement
rubidium · picosecond · femtosecond · nanosecond · time signal · UTC · drift · uncertainty
Satellite-based location technology
- satellitesBodies circling larger ones
- synchronizationAligning timing across systems
- longitudeEast-west angular distance
- latitudeGeographic or personal freedom
UTC · aerospace · telecommunications · Galileo · air traffic control · data centers · timestamping · power grid
Radiation-based kitchen heater
- resonanceAmplified oscillation at natural frequency
- quantumSmallest discrete unit
- spectroscopyStudy of light-matter interaction
- energy levelsGradations of physical vitality
oscillation · frequency · electromagnetic radiation · electron · ground state · strontium · ytterbium · absorption
cesium
Alkali metal, number fifty-five
- accuracyDegree of correctness
- synchronizationAligning timing across systems
- calibrationAdjusting for measurement accuracy
stability · rubidium · picosecond · femtosecond · nanosecond · time signal · UTC · drift · uncertainty · reproducibility
GPS
Satellite-based location technology
- satellitesBodies circling larger ones
- synchronizationAligning timing across systems
- longitudeEast-west angular distance
latitude · UTC · aerospace · telecommunications · Galileo · air traffic control · data centers · timestamping · power grid
microwave
Radiation-based kitchen heater
- resonanceAmplified oscillation at natural frequency
- quantumSmallest discrete unit
- spectroscopyStudy of light-matter interaction
energy levels · oscillation · frequency · electromagnetic radiation · electron · ground state · strontium · ytterbium · absorption · excitation
- timekeepingwatch, watches, timer, calendar, hourglass
- GPSsatellite, GPS navigation, GPS tracking, latitude, GPS receivers
- vintage collectiblestube radios, vintage signs, cash registers, pinball machines, vintage jewelry
- 24-hour clocksmilitary time, digital displays
- clock featuresdigital displays, snooze button, time zones, quartz movement
atomic clockssundials
Time-telling garden fixtures
hourglasses · water clocks · pendulum clocks · egg timers · sand timers
atomic clockssundials
Time-telling garden fixtures
solar time · lunar calendars · circadian rhythms · tidal patterns
clock, atom, atomic, clocks, clockwork, subatomic, atomism, atomic clock, atomistic