A Canadian-led study has added a new layer to one of geophysics’ most persistent puzzles: why the length of a day changes over time. Researchers say gravitational interactions deep within Earth, including torque between the planet’s layers, may be driving multidecadal variations that slightly speed up or slow down rotation. The finding does not alter daily life in any immediate way, but it sharpens scientific understanding of the planet’s interior and the long-term systems that govern timekeeping.
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"Canadian Study Finds Earth’s Core Is Subtly Shifting the Length of a Day"
A Canadian-led study has added a new layer to one of geophysics’ most persistent puzzles: why the length of a day changes over time. Researchers say gravitational interactions deep within Earth, including torque between the planet’s layers, may be driving multidecadal variations that slightly speed up or slow down rotation. The finding does not alter daily life in any immediate way, but it sharpens scientific understanding of the planet’s interior and the long-term systems that govern timekeeping.
Canadian Study Finds Earth’s Core Is Subtly Shifting the Length of a Day
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RDU Global Wire
Clean Energy & Climate Transition Desk
Washington, D.C., United States Just now (12:54 PM IST)•5 min read
A Canadian-led study has added a new layer to one of geophysics’ most persistent puzzles: why the length of a day changes over time. Researchers say gravitational interactions deep within Earth, including torque between the planet’s layers, may be driving multidecadal variations that slightly speed up or slow down rotation. The finding does not alter daily life in any immediate way, but it sharpens scientific understanding of the planet’s interior and the long-term systems that govern timekeeping.
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