Ahhhhhhhh sooooooooo
--------------------------------------------------
From: "Sterling K. Webb" <sterling_k_w...@sbcglobal.net>
Sent: Wednesday, December 30, 2009 2:44 AM
To: "Jerry Flaherty" <g...@comcast.net>; "Richard Kowalski"
<damoc...@yahoo.com>; <meteorite-list@meteoritecentral.com>; "Meteorites
USA" <e...@meteoritesusa.com>
Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky
Core?BlueCheese!?
Here's your flowing turbulence, Jerry!
http://www.sciencedaily.com/releases/2009/12/091223222743.htm
Sterling K. Webb
-----------------------------------------------------------------------------------------------
----- Original Message -----
From: "Jerry Flaherty" <g...@comcast.net>
To: "Richard Kowalski" <damoc...@yahoo.com>;
<meteorite-list@meteoritecentral.com>; "Meteorites USA"
<e...@meteoritesusa.com>
Sent: Tuesday, December 29, 2009 10:27 PM
Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky
Core?BlueCheese!?
Doesn't the magnetic field necessitate "Flowing" or "Turbulence" within
the core, a result of the Earth's differential rotation?
--------------------------------------------------
From: "Richard Kowalski" <damoc...@yahoo.com>
Sent: Tuesday, December 29, 2009 11:09 PM
To: <meteorite-list@meteoritecentral.com>; "Meteorites USA"
<e...@meteoritesusa.com>
Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core?
BlueCheese!?
Solid Iron Inner Core. Liquid Iron Outer Core.
Wiki is a good read.
http://en.wikipedia.org/wiki/Structure_of_the_Earth
--
Richard Kowalski
http://fullmoonphotography.net
IMCA #1081
--- On Tue, 12/29/09, Meteorites USA <e...@meteoritesusa.com> wrote:
From: Meteorites USA <e...@meteoritesusa.com>
Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue
Cheese!?
To: meteorite-list@meteoritecentral.com
Date: Tuesday, December 29, 2009, 9:02 PM
OK,
A friend and I were watching a show on Discovery or NatGeo
a couple months back. The program I think was about
asteroids, and impacts, perhaps even "How the Earth Was
Made" or another program. Don't really remember....
The point is during the show they said very
matter-of-factly on three separate occasions that the
Earth's core was made of three different materials. One
scientist (or narrator I don't remember) said Earth
had a rocky core. Which we laughed at of course because we
all know that the Earth's core is Solid iron right? Then
another scientist confirmed our knowledge and stated what we
already knew. The Earth core is made of SOLID iron. "Of
course we said!" Now that's right... Then not 10 minutes
more into the show another person stated that the Earth had
a molten iron core.
To make matters even more confusing the show went on to say
that the SOLID iron core was surrounded by molten iron with
lighter "rocky" materials "floating" out beyond that OK...
sounded good at the time, but....
My question is simple. Which is it? Molten? Solid Iron? or
Solid iron surrounded by molten iron. And if it's the latter
how is this possible? Wouldn't the solid iron core NOT be
solid if it were sitting in the middle of a molten lake of
iron? Does the core cool faster than the surrounding
material, and if so how is this possible considering this
the logic that says an object cools from the outside in.
Now, I'd like to stop there but I just read an interesting
article on National Geographic's website titled "North
Magnetic Pole Moving East Due to Core Flux" here:
http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html
At the end of the article it flatly states:
"...Wandering Pole -
Geologists think Earth has a magnetic field because the
core is made up of a solid iron center surrounded by rapidly
spinning liquid metal. This creates a "dynamo" that drives
our magnetic field.
Scientists had long suspected that, since the molten core
is constantly moving, changes in its magnetism might be
affecting the surface location of magnetic north...."
I don't know about you, but this confuses me just a little
bit...
Can anyone please clear this up for me? And perhaps the
rest of the world? ;)
Regards,
Eric Wichman
Meteorites USA
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