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	<title>Comments on: Cosmic Quiz: Why can&#8217;t light escape a Black Hole?</title>
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	<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole</link>
	<description>Clark Planetarium</description>
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		<title>By: Roman Havrlent</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-1243</link>
		<dc:creator>Roman Havrlent</dc:creator>
		<pubDate>Fri, 18 Jun 2010 09:14:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-1243</guid>
		<description>Around the world, research stations are trying hardronovy particle accelerator.
This device helped by the rapid weather changes and also to create a black hole.
It is my opinion because the storms, wind and sudden weather changes be opened for several months.
In the past, so was not able to change the weather.
I know that the world is tested for various things but I do not know shillings.
This is my opinion.</description>
		<content:encoded><![CDATA[<p>Around the world, research stations are trying hardronovy particle accelerator.<br />
This device helped by the rapid weather changes and also to create a black hole.<br />
It is my opinion because the storms, wind and sudden weather changes be opened for several months.<br />
In the past, so was not able to change the weather.<br />
I know that the world is tested for various things but I do not know shillings.<br />
This is my opinion.</p>
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		<title>By: Robert Bigelow</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-1159</link>
		<dc:creator>Robert Bigelow</dc:creator>
		<pubDate>Mon, 24 May 2010 22:38:15 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-1159</guid>
		<description>I realize that this answer may not be very satisfying.

It would require a fundamental change to the laws of physics for any signal to travel faster than light. Such a change would also alter General Relativity. As the properties of a black hole are determined by these laws, such a major change could potentially alter those properties in significant and unexpected ways. Therefore, it would be difficult to predict what might happen under those circumstances.</description>
		<content:encoded><![CDATA[<p>I realize that this answer may not be very satisfying.</p>
<p>It would require a fundamental change to the laws of physics for any signal to travel faster than light. Such a change would also alter General Relativity. As the properties of a black hole are determined by these laws, such a major change could potentially alter those properties in significant and unexpected ways. Therefore, it would be difficult to predict what might happen under those circumstances.</p>
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		<title>By: James</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-1144</link>
		<dc:creator>James</dc:creator>
		<pubDate>Sat, 22 May 2010 16:15:11 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-1144</guid>
		<description>I know this is impossible, but if you were say going faster than the speed of light, could you escape a black hole even if you were inside the event horizon?</description>
		<content:encoded><![CDATA[<p>I know this is impossible, but if you were say going faster than the speed of light, could you escape a black hole even if you were inside the event horizon?</p>
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		<title>By: Seth Jarvis</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-612</link>
		<dc:creator>Seth Jarvis</dc:creator>
		<pubDate>Thu, 01 Apr 2010 19:29:48 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-612</guid>
		<description>Well...

I&#039;m going to gently take issue with a couple of the points you make.

While it is true that no one has actually sent a probe into a black hole in a direct search for atoms (the closest black hole to Earth is about 1,600 light years distant), the nature of black holes themselves prevents such an experiment while at the same time the laws of physics pretty much make it impossible for an atom (involving a nucleus and one or more electrons occupying a discreet volume of space) to exist.  

Remember that a black hole is by definition a singularity - that is, a point with no dimensions. None.  It has no width, height or breadth.  It&#039;s a mathematical point in space.  

Moreover, the tidal forces experienced by any matter just before it crosses over the edge of the event horizon all but guarantee that prior to falling beyond this ultimate point-of-no-return at a black hole no atom can hold onto its nuclear structure, let alone hang on to its electrons.

And regarding the point you make about &quot;theories are not law,&quot; I don’t believe that&#039;s a scientifically accurate statement.  In science, the word “theory” means much, much more than just someone’s educated guess.

Scientists use the term &quot;theory&quot; to represent an explanation that is testable, predictive, coherent, parsimonious and yet encompasses the largest available body of observable facts.   

Examples of these would be Germ Theory and the Relativity Theory.  The fact that these are “theories” doesn’t mean it might be OK to eat stuff in your fridge that’s been there so long it has begun growing fur, or to doubt that atomic bombs are real. 

I hope this helps.</description>
		<content:encoded><![CDATA[<p>Well&#8230;</p>
<p>I&#8217;m going to gently take issue with a couple of the points you make.</p>
<p>While it is true that no one has actually sent a probe into a black hole in a direct search for atoms (the closest black hole to Earth is about 1,600 light years distant), the nature of black holes themselves prevents such an experiment while at the same time the laws of physics pretty much make it impossible for an atom (involving a nucleus and one or more electrons occupying a discreet volume of space) to exist.  </p>
<p>Remember that a black hole is by definition a singularity &#8211; that is, a point with no dimensions. None.  It has no width, height or breadth.  It&#8217;s a mathematical point in space.  </p>
<p>Moreover, the tidal forces experienced by any matter just before it crosses over the edge of the event horizon all but guarantee that prior to falling beyond this ultimate point-of-no-return at a black hole no atom can hold onto its nuclear structure, let alone hang on to its electrons.</p>
<p>And regarding the point you make about &#8220;theories are not law,&#8221; I don’t believe that&#8217;s a scientifically accurate statement.  In science, the word “theory” means much, much more than just someone’s educated guess.</p>
<p>Scientists use the term &#8220;theory&#8221; to represent an explanation that is testable, predictive, coherent, parsimonious and yet encompasses the largest available body of observable facts.   </p>
<p>Examples of these would be Germ Theory and the Relativity Theory.  The fact that these are “theories” doesn’t mean it might be OK to eat stuff in your fridge that’s been there so long it has begun growing fur, or to doubt that atomic bombs are real. </p>
<p>I hope this helps.</p>
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		<title>By: Hayden</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-574</link>
		<dc:creator>Hayden</dc:creator>
		<pubDate>Sun, 28 Mar 2010 18:41:55 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-574</guid>
		<description>Just for argument sake this is all speculation though right? No proof or evidence that these are the properties of a black hole are available. Theories are not law. No man on earth has ever come close enough to a black hole to form a valid opinion on what exist within. Although I agree, and most likely this all true, we have no proof that atoms do not exist within a black hole. Science fiction theories on black holes being portals to time travel and new dimensions are honestly as believable as these. Science is fact and this is not that.</description>
		<content:encoded><![CDATA[<p>Just for argument sake this is all speculation though right? No proof or evidence that these are the properties of a black hole are available. Theories are not law. No man on earth has ever come close enough to a black hole to form a valid opinion on what exist within. Although I agree, and most likely this all true, we have no proof that atoms do not exist within a black hole. Science fiction theories on black holes being portals to time travel and new dimensions are honestly as believable as these. Science is fact and this is not that.</p>
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		<title>By: Seth Jarvis</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-458</link>
		<dc:creator>Seth Jarvis</dc:creator>
		<pubDate>Mon, 01 Mar 2010 16:00:43 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-458</guid>
		<description>What is inside a black hole?

What&#039;s inside it is all the mass that went into making it plus whatever the black hole has eaten since it formed.

BUT, there are no atoms inside a black hole. The components of atoms - protons, neutrons and electrons - have all been crushed out of existence and occupy an infinitely small and infinitely dense point known as a &quot;singularity.&quot;

There is not a single atom of matter that we would recognize within a black hole.  There&#039;s no such thing as carbon, oxygen, iron, silicon or even so much as an atom of hydrogen in a black hole&#039;s singularity.

Why can&#039;t we go there?  Well, actually, you can - but you have to be willing to let the black hole kill you in a rather spectacular and gruesome manner on the way in. 

As you got close to the black hole&#039;s event horizon your spaceship and your body would be pulled into a long, spiraling parade of atoms traveling in single file as the black hole&#039;s immense tidal forces overcame your body&#039;s ability to hold itself together. The molecules of your body are torn apart by the tidal forces present near a black hole.  Astronomers refer to the process as &quot;Spaghettification.&quot; 

&quot;Can we think in a mythology way?&quot;  Sure you can!  Let your imagination run wild.   Science fiction depends on people using their imagination.

Just remember though, there are no atoms in a black hole.</description>
		<content:encoded><![CDATA[<p>What is inside a black hole?</p>
<p>What&#8217;s inside it is all the mass that went into making it plus whatever the black hole has eaten since it formed.</p>
<p>BUT, there are no atoms inside a black hole. The components of atoms &#8211; protons, neutrons and electrons &#8211; have all been crushed out of existence and occupy an infinitely small and infinitely dense point known as a &#8220;singularity.&#8221;</p>
<p>There is not a single atom of matter that we would recognize within a black hole.  There&#8217;s no such thing as carbon, oxygen, iron, silicon or even so much as an atom of hydrogen in a black hole&#8217;s singularity.</p>
<p>Why can&#8217;t we go there?  Well, actually, you can &#8211; but you have to be willing to let the black hole kill you in a rather spectacular and gruesome manner on the way in. </p>
<p>As you got close to the black hole&#8217;s event horizon your spaceship and your body would be pulled into a long, spiraling parade of atoms traveling in single file as the black hole&#8217;s immense tidal forces overcame your body&#8217;s ability to hold itself together. The molecules of your body are torn apart by the tidal forces present near a black hole.  Astronomers refer to the process as &#8220;Spaghettification.&#8221; </p>
<p>&#8220;Can we think in a mythology way?&#8221;  Sure you can!  Let your imagination run wild.   Science fiction depends on people using their imagination.</p>
<p>Just remember though, there are no atoms in a black hole.</p>
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		<title>By: taiyaba</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-457</link>
		<dc:creator>taiyaba</dc:creator>
		<pubDate>Sun, 28 Feb 2010 06:37:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-457</guid>
		<description>What is inside in the black hole? Should we call this thing the vacume cleaner of the space? Is there is another universe for the solar system? Why we cannot go there? Can we think in a mythology way?</description>
		<content:encoded><![CDATA[<p>What is inside in the black hole? Should we call this thing the vacume cleaner of the space? Is there is another universe for the solar system? Why we cannot go there? Can we think in a mythology way?</p>
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		<title>By: Jessica Moore</title>
		<link>http://www.clarkplanetarium.com/blog/cosmic-quiz-why-cant-light-escape-a-black-hole/comment-page-1#comment-267</link>
		<dc:creator>Jessica Moore</dc:creator>
		<pubDate>Wed, 27 Jan 2010 05:00:14 +0000</pubDate>
		<guid isPermaLink="false">http://www.clarkplanetarium.com/blog/?p=1137#comment-267</guid>
		<description>When you say the black hole doesnt let light escape, what does it do with it then? like where does it go? how do we know it doesnt end up somewhere else


~ Jessica Moore 16</description>
		<content:encoded><![CDATA[<p>When you say the black hole doesnt let light escape, what does it do with it then? like where does it go? how do we know it doesnt end up somewhere else</p>
<p>~ Jessica Moore 16</p>
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