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nightbat wrote
Double-A wrote: Greysky wrote: While Stephen Hawking recently came to the conclusion black holes are not what he thought they were, I find it amazing he took decades to come to that conclusion. He didn't want to hurt the sales of the books he had already written. Double-A nightbat You got it Double-A, with my many Maverick posting science years of net rubbing it in their faces about my dislike for non anchored sci fi and mathematical reference proof that energy and matter cannot be destroyed and therefore are always conserved not lost, Hawking had no choice but to reverse himself. The Bert sci fi loving book sales go on, while I still attempt to secure a Darla Star Fleet for us. There are no black holes only my profound " Black Comets" in the center of all active galaxies and forming new ones. ponder on, the nightbat |
#12
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Greysky wrote: Not quite. Your bones will also shorten along the direction of motion so everything will stay in proportion. The singularity of a black hole however will not foreshorten because of relativity. Since it is an infinitely small point of gravity it remains a pointlike particle of gravity and relativity allows you to look under the holes skirt, which is a no-no. Precisely what I mean. Being a point, you cannot travel fast enough to squash the event horizon 'til the singularity is exposed. You'd have to be traveling at c to make the horizon just barely intersect the singularity, and of course no external observer is going to be traveling at c. -Mark Martin |
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Mark Martin wrote:
Greysky wrote: Not quite. Your bones will also shorten along the direction of motion so everything will stay in proportion. The singularity of a black hole however will not foreshorten because of relativity. Since it is an infinitely small point of gravity it remains a pointlike particle of gravity and relativity allows you to look under the holes skirt, which is a no-no. Precisely what I mean. Being a point, you cannot travel fast enough to squash the event horizon 'til the singularity is exposed. You'd have to be traveling at c to make the horizon just barely intersect the singularity, and of course no external observer is going to be traveling at c. -Mark Martin Singularity Great deals on Singularity Shop on eBay and Save! www.eBay.com |
#14
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Raving Loonie wrote: Singularity Great deals on Singularity Shop on eBay and Save! www.eBay.com Another Google side ad: Read books by Singularity on Amazon.com -Mark Martin |
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Mark Martin wrote:
Raving Loonie wrote: Singularity Great deals on Singularity Shop on eBay and Save! www.eBay.com Another Google side ad: Read books by Singularity on Amazon.com -Mark Martin Mark |
#16
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Greysky wrote:
SNIP Indeed, the faster the black hole passes by the observer, the more flattened out the event horizon will become in the direction of motion. Eventually, there will come a point in the velocity curve, when the event horizon will be congruent with the singularity producing it. At that point, the singularity will no longer be shielded from the outside observer - it will be visible along the direction of motion, and able to interact with the external environment. Eventually there will come a point on this velocity curve where the relative velocities will pass c. This doesn't mean it can happen in reality. Just because you can plot something on paper doesn't imply it has any meaning. Try parameterizing with something besides velocity, say momentum. Then you'll find this point is never reached. Since the black hole is spherical (ellipsoidal under contraction) and the singularity is at its center it will always be interior to the event horizon up to that non-physical limit where relative motion is, on paper, at the speed of light. Note that the enveloping of the singularity is a topological property. You cannot alter topological properties via changes of frame. They are global invariants. And double check in your next analysis that the observer doesn't finally 'see the singularity' by smashing into it. BTW in general you cannot disprove a theory by using the theory. If the theory predicts black holes then describing that "the theory says if you do this then..." won't show that black holes are impossible. If you really want to invalidate the theory then you have to show that one of its predictions doesn't happen in the lab/observatory. And I mean by this you really have to do the experiment/observation not appeal to our common sense about what it "must obviously show". Regards, JB |
#17
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"Koobee Wublee" wrote in message news:udDee.11388$tQ.1600@fed1read06... "Tom Roberts" wrote in message . .. Not true. This is easily seen by interchanging black hole and observer. It is also seen by noting that the existence of points of the manifold between singularity and horizon implies that they do not intersect (which you apparently call "congruent", you misuse this word) -- this is independent of any motion of either black hole or observer. Therefore, you agree with me that Lorentz Transform only describes what is observed and not necessarily what reality is. All of science only describes what is observed. Reality can never be known. The only possible "proof" of the nonexistence of black holes is an exhaustive search of the universe. Good luck.... Or you can be as abstract as Mr. Hobba by closing his eyes doing the searching. Any abstract type of thinking also produces the same equal abstractness in imagination. However, reality checks. So, exploring deeper in this subject of black holes, it is a common belief that a black hole would be affected by the curvature of spacetime created by another black hole. It is thus understood that 2 black holes have no problems merging. In doing so, we will be enlightened with a show of massive amount of gravitational waves. However, according to Schwarzschild metric, a black creates a well in spacetime so deep that nothing can escape itself. Since you should also believe in the gravitational wave not traveling beyond the speed of light, and if the speed of light cannot escape a black hole, how then can gravitational wave escape this black hole to affect anything outside? Perhaps, you can resolve this paradox. |
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AllYou! wrote: "Koobee Wublee" wrote in message news:udDee.11388$tQ.1600@fed1read06... "Tom Roberts" wrote in message . .. Not true. This is easily seen by interchanging black hole and observer. It is also seen by noting that the existence of points of the manifold between singularity and horizon implies that they do not intersect (which you apparently call "congruent", you misuse this word) -- this is independent of any motion of either black hole or observer. Therefore, you agree with me that Lorentz Transform only describes what is observed and not necessarily what reality is. All of science only describes what is observed. Reality can never be known. The only possible "proof" of the nonexistence of black holes is an exhaustive search of the universe. Good luck.... Or you can be as abstract as Mr. Hobba by closing his eyes doing the searching. Any abstract type of thinking also produces the same equal abstractness in imagination. However, reality checks. So, exploring deeper in this subject of black holes, it is a common belief that a black hole would be affected by the curvature of spacetime created by another black hole. It is thus understood that 2 black holes have no problems merging. In doing so, we will be enlightened with a show of massive amount of gravitational waves. However, according to Schwarzschild metric, a black creates a well in spacetime so deep that nothing can escape itself. Since you should also believe in the gravitational wave not traveling beyond the speed of light, and if the speed of light cannot escape a black hole, how then can gravitational wave escape this black hole to affect anything outside? Perhaps, you can resolve this paradox. Everyone bow to the great god of the 'Perceivable' : |
#19
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"Greysky" wrote in message ... "Mark Martin" wrote in message ups.com... Greysky wrote: While Stephen Hawking recently came to the conclusion black holes are not what he thought they were, I find it amazing he took decades to come to that conclusion. Using a proof that relies on relativistic arguments instead of information conservation makes things easier to comprehend. It is assumed that a non rotating black hole will be observed to have a spherical event horizon if observed by someone at rest with respect to the black hole. Now, if the black hole is passing by someone at some relativistic velocity, that observer will see that the black holes' event horizon is no longer spherical, and that it is foreshortened in the direction of motion according to the rules of relativity. Indeed, the faster the black hole passes by the observer, the more flattened out the event horizon will become in the direction of motion. Eventually, there will come a point in the velocity curve, when the event horizon will be congruent with the singularity producing it. At that point, the singularity will no longer be shielded from the outside observer - it will be visible along the direction of motion, and able to interact with the external environment. Heh! That's a lot like saying that an observer near the event horizon, seeing me whiz by at nearly c, will see my epidermis shorten until my bones have to stick out of my skin. Not quite. Your bones will also shorten along the direction of motion so everything will stay in proportion. The singularity of a black hole however will not foreshorten because of relativity. Since it is an infinitely small point of gravity it remains a pointlike particle of gravity and relativity allows you to look under the holes skirt, which is a no-no. But because you can't achieve c, the event horizon will always have some dimension to shroud the black hole. |
#20
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Are you sure you wanted to make that response to me?
"Raving Loonie" wrote in message oups.com... AllYou! wrote: "Koobee Wublee" wrote in message news:udDee.11388$tQ.1600@fed1read06... "Tom Roberts" wrote in message . .. Not true. This is easily seen by interchanging black hole and observer. It is also seen by noting that the existence of points of the manifold between singularity and horizon implies that they do not intersect (which you apparently call "congruent", you misuse this word) -- this is independent of any motion of either black hole or observer. Therefore, you agree with me that Lorentz Transform only describes what is observed and not necessarily what reality is. All of science only describes what is observed. Reality can never be known. The only possible "proof" of the nonexistence of black holes is an exhaustive search of the universe. Good luck.... Or you can be as abstract as Mr. Hobba by closing his eyes doing the searching. Any abstract type of thinking also produces the same equal abstractness in imagination. However, reality checks. So, exploring deeper in this subject of black holes, it is a common belief that a black hole would be affected by the curvature of spacetime created by another black hole. It is thus understood that 2 black holes have no problems merging. In doing so, we will be enlightened with a show of massive amount of gravitational waves. However, according to Schwarzschild metric, a black creates a well in spacetime so deep that nothing can escape itself. Since you should also believe in the gravitational wave not traveling beyond the speed of light, and if the speed of light cannot escape a black hole, how then can gravitational wave escape this black hole to affect anything outside? Perhaps, you can resolve this paradox. Everyone bow to the great god of the 'Perceivable' : |
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