The entropy of systems

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20 years 1 week ago #11893 by north
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okay,last comment after the above explaination.

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20 years 1 week ago #11490 by north
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thanks Tom,so what would be a true photo of the Sun,in terms of our vision(ability to see,curious).

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20 years 1 week ago #11491 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 north</i>
<br />so what would be a true photo of the Sun, in terms of our vision(ability to see,curious).<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">The way our eyes see reality is the only way we have the background to interpret reality. For example, the Sun emits at all wavelengths. But the x-ray or radio images of the Sun look very strange to us.

It is the same with contrast. Space photos have to be adjusted to approximately what the human eye is used to seeing, or we could not interpret them in any familiar way. -|Tom|-

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20 years 1 week ago #11492 by north
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well i happen to look up Galileo( i was sure that Galileo discovered Sun spots,modern observation,a generally irregular "dark spot" can last less than a day but up to a month and there are exceptions of living to half a year.

further the "Umbra" the central dark part of a Sunspot(this a quote from the dictionary of Geophysics,Astrophysics and Astronomy,Edited by Richard A.Matzner).

the "penumbra" the lighter region of a Sunspot "surrounding" the "umbra".(quoted from the above dictionary again).

need i say more Tom?

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20 years 1 week ago #11894 by Jim
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Sun spots are supposed to be windows into the sun according to someone that ponders these kind of topics. So, what is the spot made of? Is it composed of something other than the surface it is floating on?

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20 years 1 week ago #11493 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 north</i>
<br />need i say more Tom?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">About what? Your questions and comments are very difficult to understand. Of what relevance is your comment to your previous question, if any? -|Tom|-

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