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	<title>Comments on: Why do black holes have such strong gravity?</title>
	<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/</link>
	<description>I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog.</description>
	<pubDate>Fri, 21 Nov 2008 19:13:11 +0000</pubDate>
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		<title>By: Al</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-130504</link>
		<dc:creator>Al</dc:creator>
		<pubDate>Sat, 01 Nov 2008 12:10:06 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-130504</guid>
		<description>ably the ravings of someone with too much 1997 Shiraz in his system, but anyway ...</description>
		<content:encoded><![CDATA[<p>ably the ravings of someone with too much 1997 Shiraz in his system, but anyway &#8230;</p>
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		<title>By: Al</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-130503</link>
		<dc:creator>Al</dc:creator>
		<pubDate>Sat, 01 Nov 2008 12:09:13 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-130503</guid>
		<description>Substitute "neutron star" for black hole and nothing Phil Plait says  is wrong ...
is SJC denying neutron stars ?
Now make the mass larger and larger - you get a an escape velocity that approaches the speed of light, but you have things orbiting this object and things coming in being accelerated. If they get near c, then they must be radiating a lot of energy so they cannot maintain that velocity to escape, and they must get to c+ to escape.
So eventually most objects that come close get slowed down and fall in - eventually something must happen .. does it explode or does it collapse. I don't know, I don't have the energy to even look at the mathemetics or theory, but when the escape velocity is c something strange must happen.My money is with the theorists, because we can see the results of the gas being pulled apart and they tell me it matches the theoretical predictions of having a supermassive small object - maybe not a singularity, but definitely something with a Schwartzchild radius.
Probab</description>
		<content:encoded><![CDATA[<p>Substitute &#8220;neutron star&#8221; for black hole and nothing Phil Plait says  is wrong &#8230;<br />
is SJC denying neutron stars ?<br />
Now make the mass larger and larger - you get a an escape velocity that approaches the speed of light, but you have things orbiting this object and things coming in being accelerated. If they get near c, then they must be radiating a lot of energy so they cannot maintain that velocity to escape, and they must get to c+ to escape.<br />
So eventually most objects that come close get slowed down and fall in - eventually something must happen .. does it explode or does it collapse. I don&#8217;t know, I don&#8217;t have the energy to even look at the mathemetics or theory, but when the escape velocity is c something strange must happen.My money is with the theorists, because we can see the results of the gas being pulled apart and they tell me it matches the theoretical predictions of having a supermassive small object - maybe not a singularity, but definitely something with a Schwartzchild radius.<br />
Probab</p>
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		<title>By: SJC</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-112318</link>
		<dc:creator>SJC</dc:creator>
		<pubDate>Sat, 16 Aug 2008 05:45:04 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-112318</guid>
		<description>Deferring: in the previous, just in case Larsson resorts to typos as a method of rebuttal.</description>
		<content:encoded><![CDATA[<p>Deferring: in the previous, just in case Larsson resorts to typos as a method of rebuttal.</p>
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		<title>By: SJC</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-112317</link>
		<dc:creator>SJC</dc:creator>
		<pubDate>Sat, 16 Aug 2008 05:42:38 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-112317</guid>
		<description>Larsson is wrong.  The physics of Plait and Parsec is incorrect. Larsson should, along with Plait and Parsec, just provide the proofs required. Also, my history of the physics is dead accurate. Larsson's claims are demonstrably false on this head too. A simple history, verified by the historical documents, is here: 

www.ptep-online.com/index_files/2006/PP-05-10.PDF

Differing to the authority of Misner, Thorne and Wheeler is not science, just hand waving, as usual. Their book contains much demonstrable nonsense. They don't even understand escape velocity, and that the Principle of Superposition does not apply in Einstein's theory. On top of that they don't even know Schwarzschild's actual solution and they don't even know what the variable 'r' denotes in their corrupted version of Schwarzschild's solution, and so they don;t even know elementary differential geometry. All this is easily verified by reading their silly book. 

We cannibals await the proofs of the preachers (but they will not come, because Plait, Parsec, Larsson et al. cannot provide them, and instead just tell us that black is white).

Nobody has found an infinitely dense point-mass singularity and nobody has found an event horizon, and so nobody has found a black hole anywhere. All claims for the discovery of black holes are false. And since infinite density is forbidden by the Theory of Relativity, black holes are inconsistent with that Theory.</description>
		<content:encoded><![CDATA[<p>Larsson is wrong.  The physics of Plait and Parsec is incorrect. Larsson should, along with Plait and Parsec, just provide the proofs required. Also, my history of the physics is dead accurate. Larsson&#8217;s claims are demonstrably false on this head too. A simple history, verified by the historical documents, is here: </p>
<p><a href="http://www.ptep-online.com/index_files/2006/PP-05-10.PDF" rel="nofollow">www.ptep-online.com/index_files/2006/PP-05-10.PDF</a></p>
<p>Differing to the authority of Misner, Thorne and Wheeler is not science, just hand waving, as usual. Their book contains much demonstrable nonsense. They don&#8217;t even understand escape velocity, and that the Principle of Superposition does not apply in Einstein&#8217;s theory. On top of that they don&#8217;t even know Schwarzschild&#8217;s actual solution and they don&#8217;t even know what the variable &#8216;r&#8217; denotes in their corrupted version of Schwarzschild&#8217;s solution, and so they don;t even know elementary differential geometry. All this is easily verified by reading their silly book. </p>
<p>We cannibals await the proofs of the preachers (but they will not come, because Plait, Parsec, Larsson et al. cannot provide them, and instead just tell us that black is white).</p>
<p>Nobody has found an infinitely dense point-mass singularity and nobody has found an event horizon, and so nobody has found a black hole anywhere. All claims for the discovery of black holes are false. And since infinite density is forbidden by the Theory of Relativity, black holes are inconsistent with that Theory.</p>
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		<title>By: Torbjörn Larsson, OM</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-110550</link>
		<dc:creator>Torbjörn Larsson, OM</dc:creator>
		<pubDate>Thu, 07 Aug 2008 23:20:14 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-110550</guid>
		<description>Life intervened, but finally returning to old threads FWIW:

@ SJC:

&lt;blockquote&gt;
Parsec should prove
&lt;/blockquote&gt;

Why would any of those derivations be applicable to the question whether black holes are sufficiently experimentally verified or not? His description of physics and its history (check for example with the standard reference "Gravitation" by Misner, Thorne, Wheeler) is on the money; yours is not.

@ MacMac:

&lt;blockquote&gt;
L.T. More, Professor of Physics at the University of Cincinnati, teased relativists 
&lt;/blockquote&gt;

Again, relevance? In spite of More's misunderstandings relativity is now universally accepted. 

Which, of course, brings the question why you don't accept it, especially since you have no scientific problems with it to present.</description>
		<content:encoded><![CDATA[<p>Life intervened, but finally returning to old threads FWIW:</p>
<p>@ SJC:</p>
<blockquote><p>
Parsec should prove
</p></blockquote>
<p>Why would any of those derivations be applicable to the question whether black holes are sufficiently experimentally verified or not? His description of physics and its history (check for example with the standard reference &#8220;Gravitation&#8221; by Misner, Thorne, Wheeler) is on the money; yours is not.</p>
<p>@ MacMac:</p>
<blockquote><p>
L.T. More, Professor of Physics at the University of Cincinnati, teased relativists
</p></blockquote>
<p>Again, relevance? In spite of More&#8217;s misunderstandings relativity is now universally accepted. </p>
<p>Which, of course, brings the question why you don&#8217;t accept it, especially since you have no scientific problems with it to present.</p>
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		<title>By: MacMac</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-105549</link>
		<dc:creator>MacMac</dc:creator>
		<pubDate>Fri, 25 Jul 2008 23:22:18 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-105549</guid>
		<description>Plait and Parsec are just repeating the standard mantra being dispensed daily by professors who have painted themselves into a corner. The few who experience some nauseating worries about it don't know how to get out of it without shaming themselves unacceptably, but most take the same position as L. T. More did when first introduced to Einstein's work, quote: 

"Thomas F. Glick, ed., The Comparative Reception of Relativity (Kluwer Academic Publishers, 1987), ISBN 9027724989." 
In the Preface by Stanley Goldberg, "The Assimilation of Relativity in America", he writes, quote: 
"...  While Lewis and Tolman were endeavoring to convince their colleagues that the theory was empirical and practical, those Americans who did comment on the theory ridiculed it as errant nonsense. L.T. More, Professor of Physics at the University of Cincinnati, teased relativists on the grounds that if they were right then the sun was melting away at an incredible rate and that when a man caught a baseball, the mass of both the ball and the man's hand should change. But he became deadly serious when he thundered that the "electronicist theories" were a throwback representing an attempt to undermine the three century struggle which science had waged to purge itself of metaphysics, that is, nonsense. ..." . 

History is about to repeat itself. Plait and Parsec would be well advised to invest some brainjuice in a thorough study of Stephen Crother's papers at &lt;http://www.sjcrothers.plasmaresources.com/papers.html&gt;. You will find the logic, mathematics and geometry to be flawless. No fudge factors. The problem might be that this is at a level that could cause your brains to creak and groan a lot before you get it. 

Mind you, we still have no way of knowing if the universe ultimately can be described in terms of the mathematics and geometry humans are capable of. 

Here's another quote for you:  

In the introduction to his Nobel Lecture on 8 December 2005 at Karolinska Institutet in Stockholm, Sweden, Dr Barry Marshall from Perth, Western Australia made reference to a famous statement by historian Daniel Boorstein: 

"The greatest obstacle to knowledge is not ignorance, it is the illusion of knowledge". 

He was alluding to the many years of rejection, snubbing and even ridicule he and his colleague and fellow Nobel Prize Laureate Dr Robin Warren had to endure before their discovery was accepted as the truth; a micro-organism, Helicobacter Pylori, could in fact live in the acidic stomach environment and was in fact casually linked to peptic ulcers.</description>
		<content:encoded><![CDATA[<p>Plait and Parsec are just repeating the standard mantra being dispensed daily by professors who have painted themselves into a corner. The few who experience some nauseating worries about it don&#8217;t know how to get out of it without shaming themselves unacceptably, but most take the same position as L. T. More did when first introduced to Einstein&#8217;s work, quote: </p>
<p>&#8220;Thomas F. Glick, ed., The Comparative Reception of Relativity (Kluwer Academic Publishers, 1987), ISBN 9027724989.&#8221; <br />
In the Preface by Stanley Goldberg, &#8220;The Assimilation of Relativity in America&#8221;, he writes, quote: <br />
&#8220;&#8230;  While Lewis and Tolman were endeavoring to convince their colleagues that the theory was empirical and practical, those Americans who did comment on the theory ridiculed it as errant nonsense. L.T. More, Professor of Physics at the University of Cincinnati, teased relativists on the grounds that if they were right then the sun was melting away at an incredible rate and that when a man caught a baseball, the mass of both the ball and the man&#8217;s hand should change. But he became deadly serious when he thundered that the &#8220;electronicist theories&#8221; were a throwback representing an attempt to undermine the three century struggle which science had waged to purge itself of metaphysics, that is, nonsense. &#8230;&#8221; . </p>
<p>History is about to repeat itself. Plait and Parsec would be well advised to invest some brainjuice in a thorough study of Stephen Crother&#8217;s papers at <http ://www.sjcrothers.plasmaresources.com/papers.html>. You will find the logic, mathematics and geometry to be flawless. No fudge factors. The problem might be that this is at a level that could cause your brains to creak and groan a lot before you get it. </p>
<p>Mind you, we still have no way of knowing if the universe ultimately can be described in terms of the mathematics and geometry humans are capable of. </p>
<p>Here&#8217;s another quote for you:  </p>
<p>In the introduction to his Nobel Lecture on 8 December 2005 at Karolinska Institutet in Stockholm, Sweden, Dr Barry Marshall from Perth, Western Australia made reference to a famous statement by historian Daniel Boorstein: </p>
<p>&#8220;The greatest obstacle to knowledge is not ignorance, it is the illusion of knowledge&#8221;. </p>
<p>He was alluding to the many years of rejection, snubbing and even ridicule he and his colleague and fellow Nobel Prize Laureate Dr Robin Warren had to endure before their discovery was accepted as the truth; a micro-organism, Helicobacter Pylori, could in fact live in the acidic stomach environment and was in fact casually linked to peptic ulcers.</http></p>
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		<title>By: SJC</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-105459</link>
		<dc:creator>SJC</dc:creator>
		<pubDate>Fri, 25 Jul 2008 17:11:10 +0000</pubDate>
		<guid>http://blogs.discovermagazine.com/badastronomy/2008/07/22/why-do-black-holes-have-such-strong-gravity/#comment-105459</guid>
		<description>Parsec should also prove that "Schwarzschild's solution" is Schwarzschild's solution (which it isn't) and prove that Schwarzschild's actual solution predicts black holes (which it doesn't) and prove that Schwarzschild obtained and advocated a black hole solution (which he didn't) and that Schwarzschild even breathed a single word about black holes (which he didn't). The facts about Karl Schwarzschild can be verified by anybody  simply by reading Schwarzschild's original two papers on the subject, links to which I have provided in my first post. Parsec should also prove that General Relativity is able to account for the simple experimental fact that two fixed bodies will attract one another upon realse, since there is no known solution to Einstein's field equations for that simple configuration of matter. Plait should also provide these additional proofs.</description>
		<content:encoded><![CDATA[<p>Parsec should also prove that &#8220;Schwarzschild&#8217;s solution&#8221; is Schwarzschild&#8217;s solution (which it isn&#8217;t) and prove that Schwarzschild&#8217;s actual solution predicts black holes (which it doesn&#8217;t) and prove that Schwarzschild obtained and advocated a black hole solution (which he didn&#8217;t) and that Schwarzschild even breathed a single word about black holes (which he didn&#8217;t). The facts about Karl Schwarzschild can be verified by anybody  simply by reading Schwarzschild&#8217;s original two papers on the subject, links to which I have provided in my first post. Parsec should also prove that General Relativity is able to account for the simple experimental fact that two fixed bodies will attract one another upon realse, since there is no known solution to Einstein&#8217;s field equations for that simple configuration of matter. Plait should also provide these additional proofs.</p>
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