Re: Temperature of the Earth's inner core

On Jan 31, 2:10 pm, "Edward Hennessey"
<halozzyzxhaloMINUS...@xxxxxxxxx> wrote:
"Stuart" <bigdak...@xxxxxxx> wrote in message

news:f1fccdfc-8361-496d-bb8d-b5da3a98fda8@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx



On Jan 30, 8:58 am, "Edward Hennessey"
<halozzyzxhaloMINUS...@xxxxxxxxx> wrote:
<lindwall.j...@xxxxxxxxx> wrote in message

news:6ad1a6e1-cee0-4eec-bd93-8c19d88e0f36@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

(That's not what he asked you. Read the question.) And now, have a
go at the Plate Tectonics questions you keep avoiding.

Actually Stuart, I think you got exactly what I was asking. I just
read through the article in Physics Today that you mentioned but it
only discusses the temperature problem for a few sentences, saying
that Williamson and his colleagues thought the temperature must be at
least several thousand degrees. The article also mentions that the
idea of pressure increasing melting point wasn't known at the time,
which I'm sure would have had an impact on Williamson's estimate, and
that in 1952 Francis Birch improved on their equation by adding the
element of temperature.

I had read the name Birch quite a few times but this article was the
first to finally give me his first name. I've been trying to find an
online copy of his 1952 paper that keeps getting mentioned, but so far
no luck. If he ever made a guess as to what the temperature of the
earth's inner core is, I still haven't found it which is unfortunate
since an estimate from 1952 is exactly what I'm looking for.

JL:

Birch was an outstanding materials scientist, and worked on the
Manhattan Project. He is perhaps best known for Birch's law an
empirical relationship that relates seismic wave speeds to the mean
atomic
number of oxides and silicates.

Stacey's Physics of The Earth, has a small discussion regarding
temperature of the
core. That might prove somewhat useful. If I think of anything else,
I'll post it here.

Stuart

Stuart:

Since I don't have you killfiled and see your posts, you were evidently not
the
disconcerting personage JL and I both referred to. So I guess the above
reply
is not to my last mention of Science Citation Index.

Regards,

Edward Hennessey

Ed,

I was replying to lindwall, but inadvertently replied to your post.

Stuart
.

Relevant Pages

  • Re: Temperature of the Earths inner core
    ... go at the Plate Tectonics questions you keep avoiding. ... read through the article in Physics Today that you mentioned but it ... that Williamson and his colleagues thought the temperature must be at ... earth's inner core is, I still haven't found it which is unfortunate ...
    (sci.geo.geology)
  • Re: Temperature of the Earths inner core
    ... that Williamson and his colleagues thought the temperature must be at ... I had read the name Birch quite a few times but this article was the ... earth's inner core is, I still haven't found it which is unfortunate ... Stacey's Physics of The Earth, ...
    (sci.geo.geology)
  • Re: Temperature of the Earths inner core
    ... that Williamson and his colleagues thought the temperature must be at ... I had read the name Birch quite a few times but this article was the ... earth's inner core is, I still haven't found it which is unfortunate ... Stacey's Physics of The Earth, ...
    (sci.geo.geology)
  • Re: Temperature of the Earths inner core
    ... read through the article in Physics Today that you mentioned but it ... that Williamson and his colleagues thought the temperature must be at ... earth's inner core is, I still haven't found it which is unfortunate ... Edward Hennessey ...
    (sci.geo.geology)
  • Re: Eric Gisse insists Temperature is Not a Tensor!
    ... can still maintain you are studying physics? ... Modern conception of classical mechanics includes special relativity. ... He is right about both temperature and tensors. ... concept of temperature in relativistic thermodynamics and that your ...
    (sci.physics.relativity)