[meteorite-list] Molten Core? Solid Core? Rocky Core?BlueCheese!?

From: Jerry Flaherty <grf2_at_meteoritecentral.com>
Date: Wed, 30 Dec 2009 15:11:52 -0500
Message-ID: <24DCBF4D108F402787A47147C50200CA_at_ASUS>

Ahhhhhhhh sooooooooo

--------------------------------------------------
From: "Sterling K. Webb" <sterling_k_webb at sbcglobal.net>
Sent: Wednesday, December 30, 2009 2:44 AM
To: "Jerry Flaherty" <grf2 at comcast.net>; "Richard Kowalski"
<damoclid at yahoo.com>; <meteorite-list at meteoritecentral.com>; "Meteorites
USA" <eric at 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" <grf2 at comcast.net>
> To: "Richard Kowalski" <damoclid at yahoo.com>;
> <meteorite-list at meteoritecentral.com>; "Meteorites USA"
> <eric at 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" <damoclid at yahoo.com>
>> Sent: Tuesday, December 29, 2009 11:09 PM
>> To: <meteorite-list at meteoritecentral.com>; "Meteorites USA"
>> <eric at 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 <eric at meteoritesusa.com> wrote:
>>>
>>>> From: Meteorites USA <eric at meteoritesusa.com>
>>>> Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue
>>>> Cheese!?
>>>> To: meteorite-list at 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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>>>>
>>>
>>>
>>>
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Received on Wed 30 Dec 2009 03:11:52 PM PST