Earth’s rotating core revolves anticlockwise unlike before
It’s possible that the inner core of Earth has begun to rotate anticlockwise. Scientists speculate that the Earth’s rotating core may have begun to slow down and revolve in the opposite way.
What does that actually mean, what caused it, though, and why does it matter?
https://www.space.com/earth-inner-core-slowing-study
The Earth’s crust is like shell, its mantle, a thick layer of rock, is like the egg white, and the core is like the yolk if you think of it as being something like an egg.
The hottest area of the Earth is its inner core, which is as hot as the Sun’s surface. Even though it is extremely hot and under extreme pressure, it is a solid ball of metal since it is so far inside the Earth’s core.
Previous studies have demonstrated that the planet’s inner core is physically isolated from the rest of the Earth by a liquid metal outer core, allowing it to spin independently of the rest of the world and not necessarily in unison.
Inner core and variations in seismic waves
The scientists have a greater understanding of what is happening in the planet’s core through observing variations in seismic waves brought on by earthquakes, far deeper than any drills could ever penetrate.
Large earthquakes occur on Earth’s surface, sending energy down into the ground and back up again. The scientists found that there had been “minimal change over the last decade” by following the trajectories taken by these seismic waves through the Earth.
Their results show that the Earth’s inner core rotation has stopped and that it has been cycling through time from one direction to another. And how does that impact us?
For those who live on Earth’ s surface, changes in the planet’s core do affect things like navigation and even the length of the day. And the reason for it is a phenomenon known as the magnetic field.
Earth’s magnetic poles are shifting and rotating speed changed
The metal core of Earth is constantly rotating at its centre as our planet orbits the sun. The magnetic field, which is created by these motions, envelops the Earth.
The Earth, which is like a gigantic magnet, has a magnetic north and south pole just like the magnets you use in school, which may have a red and blue end to represent north and south poles.
Interestingly, these are not at the same location as the north and south poles on the Earth’s surface, and since their discovery some 200 years ago, the magnetic poles of the Earth have been shifting.
The north magnetic pole of Earth has been moving so quickly in recent years that adjustments have had to be made to both commercial and military aviation navigation systems as well as search and rescue operations that operate near the North Pole.
Furthermore, the speed at which the globe rotates on its axis – or to put it another way, how long our days are – is governed by the magnetic field of the planet.
Since the 1970s around 27 leap second have been required to maintain the accuracy of our time because, though the days’ slowing is just a tiny fraction of a millisecond, it is enough to cause us to lose track of me.
It’s believed that changes in the inner core’s spin have caused constant changes in the speed at which Earth revolves on its axis over time. However, not all scientists concur with the recent discoveries.
Leading geophysicist Dr. John Vidale practises in Southern California. Even though he wasn’t a part of the study, he says he’s not sure he agrees.
He stated that our vision of the inner Earth is still fuzzy and compared peering at the Earth’ s core to a doctor trying to peek into a patient’s body without a scanner. He said, something is occurring, and i think we’re going to find it out, but it may take a decade.
Source: space
