Venus temperature

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19 years 10 months ago #11822 by GD
Replied by GD on topic Reply from
Jim,

I think you answered your question.

As you mentioned, the excess energy radiates outwards from the center of the earth. Although There seems to be a preferred direction: there is more motion at the equator. I would tend to believe this is the reason for the rotation of the earth.

There is also some energy radiating away from the center, towards the north and south pole. (This is perceptible for massive bodies such as the sun: It is not a perfect sphere and bulges outwards slightly at the poles.)

is this not a coincidence that the galaxy's dynamics is also the same!

(I wonder if the atom releases energy in the same way -along the poles.)

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19 years 10 months ago #12004 by Jim
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GD, You don't get my question and seem to want to chat about other things anyway. The energy needs to balance-whatever is radiated to the surface warms the surface. You have energy simply vanishing.

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19 years 10 months ago #12193 by GD
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Jim, where do you see energy vanishing in what I said ? whether it is transferred to other atoms or out to space, <b>energy does not vanish</b>. Energy comes FROM the atom. I do not understand your point.

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19 years 10 months ago #11857 by Jim
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GD, In one of your posts above you said the center of Earth radiates more energy than the surface. So, where does the extra energy that is being radiated at the center go if not to the surface? Maybe you are just thinking about a tiny amount of energy while I see a large amount of energy that is unaccounted for in your statement.

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19 years 10 months ago #12074 by GD
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Jim,
You have me dusting off books in my basement.
I found an interesting one: Earth's crustal evolution & plate tectonics.

There is a paragraph concerning heat flow in the Earth's crust:

- temperature gradients to about 50 Km depth range from 10C to 30C/Km (approx. temp. 600C)
- temperature gradients between 100 to 200 Km is about 3C/Km - almost no temperature differential (approx. temp. 1200C).

- These are low temperatures compared to plasmas.

One would probably think that our oceans and atmosphere takes away much of this energy, but there is another reason: the position of the atoms which compose our oceans and atmosphere.
There is a certain balance for the heat flow and I am assuming position (in mass or space) and time are the ONLY reasons for this.

This is why Venus' atmosphere is not balanced, giving off more energy than taking in.

In other words: The position and time in the evolution of energy (or the universe)has an influence on its entropy.


I found this comment in the book: " Considerable uncertainty exists regarding the temperature distribution in the earth. It is dependent upon such features of the Earth's history as:
- The initial temperature distribution.
- the process of core formation.
- The amount of heat generated as a function of both <b>depth and time</b>." (A statement such as this implies modifying Einstein's equation.)





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19 years 10 months ago #11865 by Jim
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GD, This detail has nothing to do with Einstien or entrophy-it is a simple blackbody problem anybody can solve. The Earth is hot inside and cold outside so energy flows from the interior to space. Data does not exist showing how much energy is flowing from the interior and no one knows why or how energy is being generated inside the crust. BTW, I think the numbers you posted above on the temperature profile to a depth of 100,000 meters are reasonable approximations of the temperature gradient with depth. Can you use them to get a heat flux?

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