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

Skip to comments.

Earth's Core 1,000 Degrees Hotter Than Expected
OurAmazingPlanet ^ | 4/25/13 | Elizabeth Howell

Posted on 04/25/2013 6:43:23 PM PDT by NormsRevenge

Earth's internal engine is running about 1,000 degrees Celsius (about 1,800 degrees Fahrenheit) hotter than previously measured, providing a better explanation for how the planet generates a magnetic field, a new study has found.

A team of scientists has measured the melting point of iron at high precision in a laboratory, and then drew from that result to calculate the temperature at the boundary of Earth's inner and outer core — now estimated at 6,000 C (about 10,800 F). That's as hot as the surface of the sun.

The difference in temperature matters, because this explains how the Earth generates its magnetic field. The Earth has a solid inner core surrounded by a liquid outer core, which, in turn, has the solid, but flowing, mantle above it. There needs to be a 2,700-degree F (1,500 C) difference between the inner core and the mantle to spur "thermal movements" that — along with Earth's spin — create the magnetic field.

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


TOPICS: Astronomy; Chit/Chat; Science; Weather
KEYWORDS: core; degrees; earth; earthcore; expected; hotter
Hades is heating up, I reckun..
1 posted on 04/25/2013 6:43:23 PM PDT by NormsRevenge
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Ping.


2 posted on 04/25/2013 6:44:02 PM PDT by Jet Jaguar
[ Post Reply | Private Reply | To 1 | View Replies]


NASA: Earth has multiple layers: the crust, the mantle, the liquid outer core and the solid inner core.
3 posted on 04/25/2013 6:45:22 PM PDT by NormsRevenge (Semper Fi)
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

I was reading that one of the theories about mars is that a major impact disrupted the convection currents and halted any plate tectonics that may have been going on there.


4 posted on 04/25/2013 6:46:35 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

The instrument of measurement and the scale were changed ~ the temperature is presumably the same as it ever was ~ pretty hot!


5 posted on 04/25/2013 6:46:54 PM PDT by muawiyah
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

Global warming?


6 posted on 04/25/2013 6:47:48 PM PDT by Pollster1 ("Shall not be infringed" is unambiguous.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

Still not quite up to the “several million degrees” that Al Gore said. ROFL!


7 posted on 04/25/2013 6:48:31 PM PDT by ConjunctionJunction
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

Where is your proof?


8 posted on 04/25/2013 6:48:54 PM PDT by bmwcyle (People who do not study history are destine to believe really ignorant statements.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: bmwcyle

That proof enough for ya? teehee

9 posted on 04/25/2013 6:51:28 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 8 | View Replies]

To: NormsRevenge; Revolting cat!

Globalist warning no doubt.


10 posted on 04/25/2013 6:52:12 PM PDT by a fool in paradise (America 2013 - STUCK ON STUPID)
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

Wow, now it all makes sense.


11 posted on 04/25/2013 6:54:19 PM PDT by ThomasThomas (Normal isn't normal anymore.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ConjunctionJunction

12 posted on 04/25/2013 6:54:22 PM PDT by dead (I've got my eye out for Mullah Omar.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: ConjunctionJunction

The earth has a feevah!!


13 posted on 04/25/2013 6:55:15 PM PDT by mothball
[ Post Reply | Private Reply | To 7 | View Replies]

To: bigheadfred

I believe.


14 posted on 04/25/2013 6:58:10 PM PDT by bmwcyle (People who do not study history are destine to believe really ignorant statements.)
[ Post Reply | Private Reply | To 9 | View Replies]

Please Donate Before The Place Burns Down

Click The Pic To Donate

15 posted on 04/25/2013 6:58:43 PM PDT by DJ MacWoW (My faith and politics cannot be separated)
[ Post Reply | Private Reply | To 1 | View Replies]

To: dead
Image Hosted by ImageShack.us
16 posted on 04/25/2013 7:02:20 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
[ Post Reply | Private Reply | To 12 | View Replies]

To: Jet Jaguar

It’d be really nice if it would warm up my area about 30 degrees, then.


17 posted on 04/25/2013 7:12:49 PM PDT by Salamander (Freeps With Boas)
[ Post Reply | Private Reply | To 2 | View Replies]

To: NormsRevenge
Al Gore will be glad to hear this. 1800 degrees down, several million to go:

Al Gore: Earth's Interior 'Extremely Hot, Several Million Degrees'

18 posted on 04/25/2013 7:13:00 PM PDT by Rocky (Obama is pure evil.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: dead

algore is fat


19 posted on 04/25/2013 7:13:24 PM PDT by Psiman (PS I am not a crackpot)
[ Post Reply | Private Reply | To 12 | View Replies]

To: mothball

20 posted on 04/25/2013 7:15:12 PM PDT by Salamander (Freeps With Boas)
[ Post Reply | Private Reply | To 13 | View Replies]

To: NormsRevenge

Didn’t Nobel Prize winner Al Gore tell us that the temperature of the earth’s core was millions of degrees?


21 posted on 04/25/2013 7:24:25 PM PDT by The Great RJ
[ Post Reply | Private Reply | To 1 | View Replies]

To: mothball

“The earth has a feevah!!”

And the only prescription is MORE COWBELL!


22 posted on 04/25/2013 7:25:14 PM PDT by Jack Hydrazine (I’m not a Republican, I’m a conservative! Pubbies haven't been conservative since before T.R.)
[ Post Reply | Private Reply | To 13 | View Replies]

To: Psiman

Yeah, but he’s a fat sex poodle.


23 posted on 04/25/2013 7:26:00 PM PDT by Houghton M.
[ Post Reply | Private Reply | To 19 | View Replies]

To: NormsRevenge

Fun fact: Water freezes at 32 degrees, and coincidentally, that is Al Gore’s IQ.


24 posted on 04/25/2013 7:31:05 PM PDT by Rocky (Obama is pure evil.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Pollster1

Global warming from the inside out! It is likely that the Earth is underway on nuclear power. ;-)


25 posted on 04/25/2013 7:36:34 PM PDT by SubMareener (Save us from Quarterly Freepathons! Become a MONTHLY DONOR!)
[ Post Reply | Private Reply | To 6 | View Replies]

To: NormsRevenge

Hey Norm—ya reckon hades is expanding as well to accommodate new environs? The carbon footprint down below must be an environmentalists nightmare, eheheh.


26 posted on 04/25/2013 7:38:09 PM PDT by tflabo (Truth or Tyranny)
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

But it’s a dry heat.


27 posted on 04/25/2013 7:38:25 PM PDT by Hillarys Gate Cult (Liberals make unrealistic demands on reality and reality doesn't oblige them.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

So what is the stuff at the core that remains solid while surrounded by 10,800degF+ degree stuff?

At these temperatures and pressures, known materials behave as fluids, right?


28 posted on 04/25/2013 8:04:39 PM PDT by loungitude (The truth hurts.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: cripplecreek
If you can follow it, Margarita Marinova (before her PhD) did a presentation on the Martian Dichotomy. It adds a lot of information to what you are talking about.

You can find that talk by mashing: here.

/johnny

29 posted on 04/25/2013 8:04:59 PM PDT by JRandomFreeper (Gone Galt)
[ Post Reply | Private Reply | To 4 | View Replies]

To: NormsRevenge

I read the article. Nevermind.


30 posted on 04/25/2013 8:06:30 PM PDT by loungitude (The truth hurts.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: loungitude

The pressure of the inner core keeps it solid despite the temperature.


31 posted on 04/25/2013 8:07:01 PM PDT by Strategerist
[ Post Reply | Private Reply | To 28 | View Replies]

To: NormsRevenge

But the cause of the heating never gets it’s proper due - radioactive decay. Without it, earth would be dead.

http://www.ouramazingplanet.com/1566-radioactive-decay-increases-earths-heat.html


32 posted on 04/25/2013 8:12:06 PM PDT by 103198
[ Post Reply | Private Reply | To 1 | View Replies]

To: Strategerist

Are you sure it works that way?


33 posted on 04/25/2013 8:24:15 PM PDT by loungitude (The truth hurts.)
[ Post Reply | Private Reply | To 31 | View Replies]

To: NormsRevenge

Mankind has been ruining the planet from the inside out!


34 posted on 04/25/2013 8:34:10 PM PDT by the OlLine Rebel (Common sense is an uncommon virtue./Technological progress cannot be legislated.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Salamander

31+ here today.

It is finally starting to warm up.

But, we got snow again yesterday.


35 posted on 04/25/2013 8:38:51 PM PDT by Jet Jaguar
[ Post Reply | Private Reply | To 17 | View Replies]

To: loungitude; Strategerist
Define solid and liquid. It's not that clear cut. Glass is a liquid. A seemingly solid ball of pitch is a liquid.

Oobleck seems like a liquid, but breaks like a rock when you hit it with a hammer.

Cooks study this stuff.

/johnny

36 posted on 04/25/2013 8:46:26 PM PDT by JRandomFreeper (Gone Galt)
[ Post Reply | Private Reply | To 33 | View Replies]

To: Jet Jaguar

OMG...you poor thing.


37 posted on 04/25/2013 9:05:22 PM PDT by Salamander (Freeps With Boas)
[ Post Reply | Private Reply | To 35 | View Replies]

To: JRandomFreeper

Glass is a solid. Common misconception.

http://en.m.wikipedia.org/wiki/Glass


38 posted on 04/25/2013 9:08:38 PM PDT by TexasGunLover ("Either you're with us or you're with the terrorists."-- President George W. Bush)
[ Post Reply | Private Reply | To 36 | View Replies]

To: TexasGunLover
Define liquid and solid and then let's discuss which glass is.

/johnny

39 posted on 04/25/2013 9:24:11 PM PDT by JRandomFreeper (Gone Galt)
[ Post Reply | Private Reply | To 38 | View Replies]

To: NormsRevenge
Hurry up folks lets ban R-12 Freon, and Carbon before the Earth's inner cord heats up.. Sarcasm
40 posted on 04/26/2013 12:25:45 AM PDT by American Constitutionalist
[ Post Reply | Private Reply | To 1 | View Replies]

To: NormsRevenge

41 posted on 04/26/2013 5:54:57 AM PDT by JRios1968 (I'm guttery and trashy, with a hint of lemon. - Laz)
[ Post Reply | Private Reply | To 1 | View Replies]

To: loungitude

Bless you.. I usually don’t, or at least as thoroughly as I should most times. ;-)


42 posted on 04/26/2013 12:21:30 PM PDT by NormsRevenge (Semper Fi)
[ Post Reply | Private Reply | To 30 | View Replies]

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