Why Scientists Say Earth’s Core Might Be Changing the Length of a Day.mp4

Amaze Lab

The Earth rotates on an axis and deep under its crust, so does its core. However, experts now say their observations have revealed that the inner core is changing speed and it could actually change the length of our days.

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00:00the earth rotates on an axis and deep under its crust so does its core however experts now say

00:09their observations have revealed that the inner core is changing speed and it could actually

00:13change the length of our days earth's inner core is located around 3 000 miles underground and is

00:19around two-thirds the size of the moon it consists of molten nickel and iron and by looking at seismic

00:24data which provides an insight into the reverberations that ripple through the core geoscientists

00:28have been able to perceive the movement of the inner core finding it's slowing down they say the

00:33slowing process began in 2010 likely caused by either the outer core's movement or some gravitational

00:39forces with the researchers telling usa today when i first saw the seismograms that hinted at this

00:44change i was stumped but when we found two dozen more observations signaling the same pattern the

00:49result was inescapable so should we be worried probably not here's how the researchers explained

00:54it to usc journalists it would be very hard to notice on the order of a thousandth of a second

00:59almost lost in the noise of the turning oceans and atmosphere

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