why does the heavy stuff float?

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18 years 2 months ago #17517 by Tommy
Replied by Tommy on topic Reply from Thomas Mandel
If the heavy elements are produced only by supernovas, then those elements would be found everywhere. Are they?

How is it, assuming that they come from outside the solare system, that the earth was able to capture all of them?

And why are they then found in clumps such as "iron mountain"

And are they present in the moon?

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18 years 2 months ago #17625 by Jim
Replied by Jim on topic Reply from
Tommy, The iron formations on Earth are a result of geological events and that is an interesting story that can be found by searching for "banded iron formations". The iron on the sun is another matter and thats what TVF is explaining; standard models of the elements. They say all elements with more than two protons are generated in supernova events but there is no reason, other than for convenience, to believe that is correct. That is what I'm wondering about-weather or not the sun can generate atoms with more than two protons.

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18 years 2 months ago #17518 by tvanflandern
<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Tommy</i>
<br />If the heavy elements are produced only by supernovas, then those elements would be found everywhere. Are they?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">Essentially, yes. There are some "low metalicity" stars, but most stars have Sun-like compositions. In fact, one of the "50 top problems with the Big Bang" is that the most distant, high-redshift quasars seem to be rich in iron despite a supposed lack of enough generations of previous supernovae to make them.

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">How is it, assuming that they come from outside the solar system, that the earth was able to capture all of them?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">In fission theory, Earth and all planets came from the Sun and therefore initially had solar abundances of all elements. Earth then lost most of its hydrogen and helium (the light elements its gravity could not hold), which made up over 99% of its original mass. So the heavy elements became relatively much more abundant in Earth than they are in a gas giant like Jupiter.

After formation, while the planet is still molten, the heavy elements tend to sink to the core and the light elements tend to rise to the crust. This process is called "chemical differentiation".

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">And why are they then found in clumps such as "iron mountain"<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">Explanations for affinity of like elements is a question for a chemist. Hopefilly, someone knowledgable in that area will read this and respond.

From my astronomer's perspective, I would suspect that iron and other deposits in the crust are the result of asteroid impacts.

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">And are they present in the moon?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">The Moon came from the Earth's crust and therefore has relatively little iron. -|Tom|-

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18 years 2 months ago #17578 by Tommy
Replied by Tommy on topic Reply from Thomas Mandel
quote:

(Tommy)
On the other hand, if matter is created in the Sun, ...

(Tom)
Out of what???

(Tommy)

That stuff that sustains all the EMF going on ---

arxiv.org/PS_cache/astro-ph/pdf/0509/0509230.pdf

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">The microscopic processes involved in the disappearance of nucleons during the formation of a dark energy star are for the most part time reversible. This means that a time-reversed process whereby vacuum energy is converted into quarks, leptons, and gamma rays is theoretically possible. The stability of the normal vacuum state would preclude such a process from occurring under ordinary circumstances. In addition, theoretical calculations indicate that dark energy stars in isolation are stable at zero temperature. On the other hand, gravitational collapse of an assembly of dark energy stars may offer an opportunity to convert the vacuum energy stored in the mass of the dark energy stars into ordinary matter energy.<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

This is an example of a production of energy/matter from what I always call the inside of space. It is possible to create matter from energy, so if it can done on a small scale, the center of a galaxy is a big place.

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18 years 2 months ago #17627 by Tommy
Replied by Tommy on topic Reply from Thomas Mandel


<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Essentially, yes. There are some "low metalicity" stars, but most stars have Sun-like compositions. In fact, one of the "50 top problems with the Big Bang" is that the most distant, high-redshift quasars seem to be rich in iron despite a supposed lack of enough generations of previous supernovae to make them.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

If our Sun has all the elements in it, where did they come from" It doesn't make sense to me that all the elements came from supernova processes, they would have to seed all the stars and there are a lot of those...

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18 years 2 months ago #17628 by tvanflandern
<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Tommy</i>
<br />If our Sun has all the elements in it, where did they come from? It doesn't make sense to me that all the elements came from supernova processes, they would have to seed all the stars and there are a lot of those...<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">In standard theory, all but the lightest elements came from many previous generations of supernovas, and the lighter elements came from the Big Bang. The first generation of stars had no heavy elements, and later generations formed from more and more enriched interstellar gases and dust.

The Meta Model differs in that the universe is infinitely old and in a mostly equilibrium state. Some interstellar and intergalactic gases are being enriched while others are being depleted of heavy elements. -|Tom|-

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