Study says the Earth's Core is changing directions

[Calypso Jones]

Earth’s Core Has Stopped and May Be Reversing Direction, Study Says

The surprising finding might solve longstanding mysteries about climate and geological phenomena.

www.vice.com

well just send somebody down to check on it okay geniuses?

little sensational..... They really don't know one way or the other.


Earth’s inner core is a solid metal ball that is 75 percent the size of the Moon. It can spin at different speeds and directions compared to our planet because it is nestled within a liquid outer core, but scientists are not sure exactly how fast it spins or whether its speed varies over time.
Located some 3,000 miles beneath our feet, the core experiences such intense pressures that it is likely as hot as the surface of the Sun. Because it is so remote and difficult to study, the inner core remains one of the least understood environments on our planet, though it’s clear that it plays a role in many processes that make our world habitable to life, such as the generation of Earth’s protective magnetic field, which blocks harmful radiation from reaching the surface.
Now, Yi Yang  and Xiaodong Song, a pair of researchers at Peking University’s SinoProbe Lab at School of Earth and Space Sciences, have captured “surprising observations that indicate the inner core has nearly ceased its rotation in the recent decade and may be experiencing a turning-back in a multidecadal oscillation, with another turning point in the early 1970s,” according to a study published on Monday in Nature Geoscience.
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“There are two major forces acting on the inner core,” Yang and Song said in an email to Motherboard. “One is the electromagnetic force. The Earth’s magnetic field is generated by fluid motion in the outer core. The magnetic field acting on the metallic inner core is expected to drive the inner core to rotate by electromagnetic coupling. The other is gravity force. The mantle and inner core are both highly heterogeneous, so the gravity between their structures tends to drag the inner core to the position of gravitational equilibrium, so called gravitational coupling.”
“If the two forces are not balanced out, the inner core will accelerate or decelerate,” they added. “Both the magnetic field and the Earth’s rotation have a strong periodicity of 60-70 years. We believe that the proposed 70-year oscillation of the inner core is driven by the electromagnetic and gravitational forces.”
Song has spent decades trying to unravel the mysteries of the inner core by studying seismic waves that pass through this distant region. He was part of the team that first reported evidence of the inner core’s rotation in 1996 by measuring slight time (or “temporal”) changes in these waves, which are generated by earthquakes.
However, the origin of the temporal changes has been a matter of debate within the geoscience community ever since, as some scientists think the wave patterns arise from phenomena at the boundary between the outer and inner core.

Remember the Core (2003) That's a big ole Predictive Programming.

 

[1srelluc]

Bonus Charlie Frost.

 

[excalibur]

Is there nothing CO2 cannot do!?!

 

[JGalt]

Bonus Charlie Frost.

"Charlie Frost"

 

[Baron Von Murderpaws]

The earth shifted its axis half a degree back in the 80's.
Thats why we are having these weather changes. Has absolutely nothing to do with climate change. Its just shifiting weather patterns.

Wouldn't be surprised if the core is shifting now as well, as the planetary orbit is also slowly shifting.

 

[alang1216]

Earth’s Core Has Stopped and May Be Reversing Direction, Study Says

The surprising finding might solve longstanding mysteries about climate and geological phenomena.

www.vice.com

well just send somebody down to check on it okay geniuses?

little sensational..... They really don't know one way or the other.


Earth’s inner core is a solid metal ball that is 75 percent the size of the Moon. It can spin at different speeds and directions compared to our planet because it is nestled within a liquid outer core, but scientists are not sure exactly how fast it spins or whether its speed varies over time.
Located some 3,000 miles beneath our feet, the core experiences such intense pressures that it is likely as hot as the surface of the Sun. Because it is so remote and difficult to study, the inner core remains one of the least understood environments on our planet, though it’s clear that it plays a role in many processes that make our world habitable to life, such as the generation of Earth’s protective magnetic field, which blocks harmful radiation from reaching the surface.
Now, Yi Yang  and Xiaodong Song, a pair of researchers at Peking University’s SinoProbe Lab at School of Earth and Space Sciences, have captured “surprising observations that indicate the inner core has nearly ceased its rotation in the recent decade and may be experiencing a turning-back in a multidecadal oscillation, with another turning point in the early 1970s,” according to a study published on Monday in Nature Geoscience.
ADVERTISEMENT

“There are two major forces acting on the inner core,” Yang and Song said in an email to Motherboard. “One is the electromagnetic force. The Earth’s magnetic field is generated by fluid motion in the outer core. The magnetic field acting on the metallic inner core is expected to drive the inner core to rotate by electromagnetic coupling. The other is gravity force. The mantle and inner core are both highly heterogeneous, so the gravity between their structures tends to drag the inner core to the position of gravitational equilibrium, so called gravitational coupling.”
“If the two forces are not balanced out, the inner core will accelerate or decelerate,” they added. “Both the magnetic field and the Earth’s rotation have a strong periodicity of 60-70 years. We believe that the proposed 70-year oscillation of the inner core is driven by the electromagnetic and gravitational forces.”
Song has spent decades trying to unravel the mysteries of the inner core by studying seismic waves that pass through this distant region. He was part of the team that first reported evidence of the inner core’s rotation in 1996 by measuring slight time (or “temporal”) changes in these waves, which are generated by earthquakes.
However, the origin of the temporal changes has been a matter of debate within the geoscience community ever since, as some scientists think the wave patterns arise from phenomena at the boundary between the outer and inner core.

Remember the Core (2003) That's a big ole Predictive Programming.

I think they are looking for reasons the Earth's magnetic poles periodically change their polarity.

 

[Calypso Jones]

Must be fund raising month for the Institute.

 

[Baron Von Murderpaws]

I think they are looking for reasons the Earth's magnetic poles periodically change their polarity.

Becaaaaaaause...............

 

[Baron Von Murderpaws]

Must be fund raising month for the Institute.

Time to panic the sheeples!!!!

 

[Unkotare]

 

[Calypso Jones]

Time to panic the sheeples!!!!

exactly

 

[Nobody911]

My views :

Objects in motion tend to stay in motion. Objects at rest tend to stay at rest. If an object is moving, then a force is required to slow it down or stop it.

Just simple questions here... If what the two said is true, how do the 2 forces work? How do they stop & spin the inner core? No proof yet? Just belief?

So...right now it's nothing but a sci-fi. Nothing to worry about. lol.

Facts:

1) We've only known for a few short decades that Earth's inner core rotates in relation to the mantle above it, since it was confirmed in 1996 by Song and fellow seismologist Paul Richards at Colombia University.

Before their work, the idea that Earth's inner core rotates separately from the rest of the planet was an unproven theory, predicted by an unproven model of Earth's magnetic field. Since then, earth scientists have been trying to figure out - from a distance of 5,100 kilometers (or 3,170 miles) - how fast or slow the inner core spins.

2) Current measurements show the effects of the Sun and Moon are slowing Earth’s rotation at a rate of about 2 milliseconds every 100 years.

Source:
1) Earth's Inner Core May Right Now Be in The Process of Changing Direction : ScienceAlert – Earth's Inner Core May Right Now Be in The Process of Changing Direction
2) What makes Earth spin on its axis without slowing down? | Astronomy.com – What makes Earth spin on its axis without slowing down?

 

[Natural Citizen]

It's always said that a pole shift is instant.

But it's only instant in the universal sense. That's a much different ''scale.''

In reality, a pole shift occurs over the course of hundreds or thousands of years.

Just some casual trivia there.