Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Earth's Core Spins Faster Than the Rest of the Planet
NY Times ^ | August 25, 2005 | KENNETH CHANG

Posted on 08/25/2005 8:20:46 PM PDT by neverdem

As the earth turns, the center of the earth turns even faster.

Confirming assertions first made in 1996, a team of geophysicists are presenting data in the journal Science today showing that the earth's inner core, a ball of solid iron larger than the moon, spins faster than the rest of the planet. Over a period of 700 to 1,200 years, the inner core appears to make one full extra spin.

That extra spin could give scientists information about how the earth generates its magnetic field.

The inner core, 1,500 miles wide, sits at the center of the planet, ensconced in a sea of hot liquid metal known as the outer core. With nothing to hold it in place, the inner core can rotate independently. Nearly a decade ago, two scientists at the Lamont-Doherty Earth Observatory of Columbia University said it did just that.

Other scientists, however, questioned the analysis, which was based on the speed of earthquake waves passing through the earth. Subsequent attempts to pin down the inner core's rate of spinning produced a wide range of answers. Some said it spun, but at a much slower rate than the Columbia scientists claimed. Others said they could find no sign that the core was out of step with the other parts of the planet. Some said it seemed to be spinning at a slower rate, not faster.

The same researchers who made the original claim, Paul G. Richards and Xiaodong Song, now a professor of geology at the University of Illinois, led the new research, which they said should remove any remaining doubts.

While it does not precisely pin down how much more quickly the core is spinning, Dr. Song said, "what this particular paper shows is it cannot be zero."

Gary A. Glatzmaier, a professor of earth...

(Excerpt) Read more at nytimes.com ...


TOPICS:
KEYWORDS: bushsfault; catastrophism; earthscience; geophysics; science
Navigation: use the links below to view more comments.
first previous 1-2021-4041-58 last
+antineutrino +herndon
Google

41 posted on 08/27/2005 7:12:04 AM PDT by SunkenCiv (Down with Dhimmicrats! I last updated by FR profile on Sunday, August 14, 2005.)
[ Post Reply | Private Reply | To 39 | View Replies]

To: djf
...to the moon, whos orbit speeds up ever so slightly, taking it just a bit farther away.

It, the moon, slows down as it moves away. See my friend Kepler about this.

42 posted on 08/27/2005 8:50:26 AM PDT by Poincare
[ Post Reply | Private Reply | To 33 | View Replies]

To: Poincare

The extra velocity given to the moon serves to take it to a higher orbit, where it settles in, a bit slower thn the initial velocity.

That's why rockets have to go fast to get into orbit.


43 posted on 08/27/2005 5:37:42 PM PDT by djf (Government wants the same things I do - MY guns, MY property, MY freedoms!)
[ Post Reply | Private Reply | To 42 | View Replies]

To: Poincare

"It, the moon, slows down as it moves away. See my friend Kepler about this."

If you mean, the higher the orbit, the slower the object, then no, that's not correct. The faster the satellite, the higher the orbit.


44 posted on 08/27/2005 7:36:39 PM PDT by SunkenCiv (Down with Dhimmicrats! I last updated by FR profile on Sunday, August 14, 2005.)
[ Post Reply | Private Reply | To 42 | View Replies]

To: 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; BBell; ...

Note: this topic is from 8/25/2005. Thanks neverdem. I'm adding this because a later one had already been added.
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

45 posted on 11/21/2010 7:20:01 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Very fascinating topic! Thanks for the ping!


46 posted on 11/21/2010 8:01:23 PM PST by KoRn (Department of Homeland Security, Certified - "Right Wing Extremist")
[ Post Reply | Private Reply | To 45 | View Replies]

To: KoRn

My pleasure!


47 posted on 11/22/2010 4:02:04 AM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | To 46 | View Replies]

To: SunkenCiv

No wonder I’m such a dizzy broad.

;o]


48 posted on 11/22/2010 6:28:19 AM PST by Monkey Face (This statement is false.)
[ Post Reply | Private Reply | To 45 | View Replies]

To: okie01
Gravity is a function of mass. Not speed of rotation.

There is no gravity. The world sucks.

49 posted on 11/22/2010 6:31:07 AM PST by Lazamataz
[ Post Reply | Private Reply | To 8 | View Replies]

To: Nick Danger
Gravity is generated by a large quantity of elves (called Gribbly Elves) who, using their cabbage fingers, clutch gently at anything made of rust, and pulls them gently towards them. The more mass, the more Gribblies, because Gribblies need to sit on something in order to grab something else.

Proof:


50 posted on 11/22/2010 6:38:18 AM PST by Lazamataz
[ Post Reply | Private Reply | To 29 | View Replies]

To: neverdem; SunkenCiv
Earth's Core Spins Faster Than the Rest of the Planet

Thanks! For clearing things up! I could never decide between the MSM and those Ba$tards in D.C. Just knowing for sure they are second and third rate a$$holes makes me feel MUCH better.

51 posted on 11/22/2010 6:53:59 AM PST by bigheadfred (/s happens)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Lazamataz

Now THAT makes perfect sense to me. Thanks for clearing it up!

;o]


52 posted on 11/22/2010 7:03:11 AM PST by Monkey Face (This statement is false.)
[ Post Reply | Private Reply | To 50 | View Replies]

To: Lazamataz
You can't fool me. Those equations have nothing to do with gravity. Those are the equations that describe greenshift.

Greenshift is what you observe when the guy next door makes a lot more money than you do. As his standard of living recedes from yours at an ever-greater speed, the grass looks greener on the other side of the fence.

53 posted on 11/22/2010 12:40:34 PM PST by Nick Danger (Pin the fail on the donkey)
[ Post Reply | Private Reply | To 50 | View Replies]

To: Nick Danger
I'm busted.

Remember, though, if everything on the other side of the fence is getting greener, that the dude also has a wife.

A wife that is turning greener.

And that CAN'T be healthy.

54 posted on 11/22/2010 1:18:41 PM PST by Lazamataz
[ Post Reply | Private Reply | To 53 | View Replies]

To: bigheadfred
There should be a sign in front of the White House -- "if a$$hol€$ could fly, this place would be an airport."
55 posted on 11/23/2010 7:56:34 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | To 51 | View Replies]

To: Monkey Face

I suppose it’s a good thing that apples aren’t like this.


56 posted on 11/23/2010 7:57:05 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | To 48 | View Replies]

To: SunkenCiv

It may already be one. Every time I see Obama I feel like I’ve been fondled.


57 posted on 11/23/2010 8:07:30 PM PST by bigheadfred (/s happens)
[ Post Reply | Private Reply | To 55 | View Replies]

-and-
58 posted on 07/03/2011 2:54:57 PM PDT by SunkenCiv (It's the Obamacare, stupid! -- Thanks Cincinna for this link -- http://www.friendsofitamar.org)
[ Post Reply | Private Reply | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-58 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson