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Science Earth Sciences Geophysics

Earth's Rotation

Timekeeping Timekeeping Systems Historical Changes Impact on Technology Study from NASA's JPL and ETH Zurich Influence of Lunar Tidal Friction Angular Velocity Negative Leap Second Speed Changes Day and Night Cycle Time Measurement Variations in Speed Length of Day Effects of Earth's Rotation Tidal Forces Astronomical Measurements Impact of Melting Polar Ice Caps Rotational Speed Measurements Angular Momentum Conservation Climate Change