HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Topics » Science » Science (Group) » Earth's inner core seems ...

Mon Jan 23, 2023, 12:38 PM

Earth's inner core seems to be slowing its spin

Washington Post
By Carolyn Y. Johnson, January 23, 2023

In the mid-1990s scientists found evidence that Earthís inner core, a superheated ball of iron slightly smaller than the moon, was spinning at its own pace, just a bit faster than the rest of the planet. Now a study published in Nature Geoscience suggests that around 2009, the core slowed its rotation to whirl in sync with the surface for a time ó and is now lagging behind it.

The provocative findings come after years of research and deep scientific disagreements about the core and how it influences some of the most fundamental aspects of our planet, including the length of a day and fluctuations in Earthís magnetic field.

Three thousand miles below the surface, a scorching hot ball of solid iron floats inside a liquid outer core. Geologists believe that the energy released by the inner core causes the liquid in the outer core to move, generating electrical currents that in turn spawn a magnetic field surrounding the planet. This magnetic shielding protects organisms on the surface from the most damaging cosmic radiation.

Donít panic. The coreís slowing down isnít the beginning of the end times. The same thing appears to have happened in the late 1960s and early 1970s, and the study authors at Peking University in China suggest it may represent a 70-year cycle of the coreís spin speeding up and slowing down.

https://www.washingtonpost.com/science/2023/01/23/earth-core-slowing/

7 replies, 1008 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 7 replies Author Time Post
Reply Earth's inner core seems to be slowing its spin (Original post)
Wicked Blue Jan 2023 OP
GenXer47 Jan 2023 #1
alittlelark Jan 2023 #2
Wicked Blue Jan 2023 #3
cstanleytech Jan 2023 #6
hvn_nbr_2 Jan 2023 #5
canuckledragger Jan 2023 #4
BadGimp Jan 2023 #7

Response to Wicked Blue (Original post)

Mon Jan 23, 2023, 01:08 PM

1. well I'm panicking, and I think we should all

run the same direction for a while to help out.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to GenXer47 (Reply #1)

Mon Jan 23, 2023, 01:30 PM

2. .......

Reply to this post

Back to top Alert abuse Link here Permalink


Response to GenXer47 (Reply #1)

Mon Jan 23, 2023, 01:50 PM

3. lolol



I wonder if spin doctors could help

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Wicked Blue (Reply #3)

Mon Jan 23, 2023, 06:40 PM

6. I heard that Fox News has a lot on call 24/7 such as Sean Hannity and Tucker Carlson.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to GenXer47 (Reply #1)

Mon Jan 23, 2023, 05:40 PM

5. Be sure to carry all your refrigerator magnets with you.

That should help affect the iron core. But which direction should we run?

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Wicked Blue (Original post)

Mon Jan 23, 2023, 04:44 PM

4. Didn't they make a shitty sci-fi movie about this already?

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Wicked Blue (Original post)

Wed Jan 25, 2023, 01:05 PM

7. Not to worry people!

George Santos has already let be known that he can fix it.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread