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Hace 3 horas · Seismic waves passing through the Earth have revealed that the inner core of our planet is now rotating out-of-sync with the layers above it. Update: As reported below, research from January 2023 indicated that the solid metal core of Earth might have reversed its spin, as part of a decades-long pattern of slowing down and speeding up.
Hace 9 horas · Earth's inner core, the innermost geologic layer of our planet, which is a solid ball with a radius of about 1,220 km, is now rotating in the opposite direction than when it was discovered nearly a century ago, scientists have said. A study led by Dr. John Vidale, Dean’s Professor of Earth Sciences at the University of Southern California’s Dornsife College of Letters, Arts and Sciences ...
Hace 2 horas · In 2023, a theory emerged explaining the dynamism of the Earth’s core rotation. It postulates that the inner core once revolved quicker than the crust, but, over time, it has slowed down ...
Hace 14 horas · In Newtonian mechanics, momentum (pl.: momenta or momentums; more specifically linear momentum or translational momentum) is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity (also a vector quantity), then the object's momentum p (from Latin pellere "push, drive") is: =.
