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Do black holes contain singularities?
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bluestar Send message Joined: 5 Sep 12 Posts: 7015 Credit: 2,084,789 RAC: 3 |
Probably we are back to the old question about whether gravity is matter or energy, or perhaps a still undiscovered or not detected particle instead being called the graviton. In the same way, some particles supposed to be having mass are making up the visible matter in the universe. Those particles which are having no mass at all is thought of as representing energy only. Or perhaps I am wrong when it comes to my thinking here. Any suggestions are welcome. If not so, I am being reminded about the old sock hanging on the Christmas calendar where small gifts may be poured. Pouring gifts into it, starting December 1 and ending on December 24, or 25, it becomes heavy at the bottom and eventually becomes filled up. An eddy in a dam being emptied is shallow from top to bottom and may rotate around its axis as well. In comparison a Black Hole could be like an extremely long pencil in space, only with the eddylike structure at its top or entrance point where matter is being sucked in because of the gravity. Such a thing also makes me think that gravity and radiation appears to be opposite things to each other. For now we only relate such an object to the surrounding space itself, not necessarily where its internal direction is directing it through space and possibly time. The time factor probably makes some of the properties of Black Holes still to be fully explained. |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
Gravity is the warpage of space and the desire of all objects to be in their lowest energy levels. We like to associate particles with waves. For sure there will be gravity waves when cosmic events take place. |
Darth Beaver Send message Joined: 20 Aug 99 Posts: 6728 Credit: 21,443,075 RAC: 3 |
Probably we are back to the old question about whether gravity is matter or energy, or perhaps a still undiscovered or not detected particle instead being called the graviton. Let's hope Cern can figure that out soon I'm getting to old to wait . I want my "Jetson's" Antigrav car for gowd sake If they do find the Graviton then you would say yes Black holes have are a singularity if no Graviton then possibly no and maybe a door way to another universe , not that well ever be able to cross the barrier , the event horizon |
bluestar Send message Joined: 5 Sep 12 Posts: 7015 Credit: 2,084,789 RAC: 3 |
Warpage? Do you perhaps mean War Games or perhaps some other twisting? The little sad thing is that we have only ourselves to compare against when it comes to either being able to detect an intelligent signal, or next assume that a song being performed by a female singer may be an indication of the presence of intelligence. We should not forget that the gaussian search for now is probably the closest we may get when it comes to detecting an intelligent signal coming from space. Scientists analyzing the audio being extracted from the WOW signal apparently are no better able to determine that the power of this signal could be divided into six parts, each with its corresponding numerical or alphanumerical value or representation, where each part correspond to a signal strength having a power between 5 and 30 times the background. 6EQUJ5 6 - 6 E - 14 Q - 26 U - 30 J - 19 5 - 5 Here are the different strength levels of the different parts of the signal against the background, which should be mostly noise. Make a similar comparison when it comes to the graphical display output for a gaussian score and there probably are both differences and similarities. The WOW signal was not a gaussian on its own, by the way. Source: Jerry R. Ehman. |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
What's beyond an Event Horizon? From what I have learnt is that there is second Event Horizon. The first one is where matter loses its information. The second one is where matter transmute to "nothing". Just to pure gravity, warped space. |
bluestar Send message Joined: 5 Sep 12 Posts: 7015 Credit: 2,084,789 RAC: 3 |
My apologies. It became the wrong contents in the wrong place. In the middle of the week and in the middle of the day, I was not in the mood. But the fact is that generally speaking, science is supposed to be carried out with respect to the Standard Model of Physics or the similar. For the lack of a given explanation, or perhaps we may think there could be other reasons behind a couple of things, different approaches, like those related to religion and faith might be used at times. Do I believe that science alone, including mathematics and physics, or perhaps religion and faith may be giving all answers to the questions we might be asking? My opinion is probably no to both these things, separately. Should we look at something else instead, except for possible intelligence, which is a subject on its own, in order to explain why the Universe does exist and we happen to be a part of it? If so, what should be looking for? The fact is that even though the subject of logic may only be about the difference between true and false, "infallibility" is not a usual part of our living world, but rather the opposite, unfortunately. Because the opposite may exist in nature as well, such a thing does not prove any presence of the divine, only that some things may appear to be so, but only as a result of the equations which makes such a thing possible. My best guess is that the Universe was not created from nothing, but for now our ability at understanding the processes which made this possible is beyond our comprehension. |
SciManStev Send message Joined: 20 Jun 99 Posts: 6652 Credit: 121,090,076 RAC: 0 |
http://www.forbes.com/sites/startswithabang/2016/06/07/escape-from-a-black-hole-not-in-this-universe/#415983d22722 Steve Warning, addicted to SETI crunching! Crunching as a member of GPU Users Group. GPUUG Website |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
Hawking is again at the bleeding edge of physics. Recently LIGO and LISA Pathfinder have been making headlines with their experimental results. We are still debating Einstein's theories after a hundred years. Tullio |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
We are still debating Einstein's theories after a hundred years. It seems to be anomalies even in Newton's laws. One of the Apollo mission placed a mirror on the moon. It turns out that the distance to the moon don't match up with the calculated distance. The difference is only by something like 10 meters. It's not a big deal and I don't know if scientists have come up with an explanation but it's very peculiarly. |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
I think that the Earth-Moon distance is not a constant but varies for many reasons. There are several retroreflectors on the Moon left by Apollo crews and probably they give different values, depending on where they are. Tullio |
bluestar Send message Joined: 5 Sep 12 Posts: 7015 Credit: 2,084,789 RAC: 3 |
This again reminds me about the 43 arcsecond discrepancy in the orbit of the planet Mercury around the Sun. Using Newtons Laws of Gravity, the position of Mercury differs from that when compared to its actual position. This should not only imply the position of the planet in the sky, but also the relative position between the planet, Earth and the Sun, if I am not wrong. I have not checked yet, but assumedly we should know why this is so, but next it may become the question about whether space itself could be a factor as well in order for this to be happening and not only the equations which are being used for such a measurement. |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
Yes. But that discrepancy is explained by scientists and is used as one of the proofs that Einsteins theory of warped space-time around heavy objects is correct. Inside a black hole space-time is really warped. That space can be warped is comprehensible but that also time is warped is to me very difficult to grasp. |
bluestar Send message Joined: 5 Sep 12 Posts: 7015 Credit: 2,084,789 RAC: 3 |
Again, I had a quite long period today here when things were not running at all. Closing in on 11 PM in the evening, I will be continuing on a couple of tasks in my task list. https://en.wikipedia.org/wiki/Time_dilation Again, from an idea in my head and checking it out, this Wikipedia article is a quite good one worth reading and for some reason only happened to come across it right now. Edit: We know that gravity and matter is present inside a Black Hole. Perhaps it could be possible to speculate whether time itself could be having more than only one given property and that possible other such properties could be found inside the Event Horizon of such Black Holes? For now only speculation, of course. |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
It's fun but totally useless reading all these theories about the nature of black holes and singularities. What is known about these phenomena wouldn't fill a thimble. I was under the belief that a singularity is the cause of a black hole. We know what one does but nothing about why and little about how. The big question is whether they will ever be of any use to us in our quest to explore the universe. Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
The big question is whether they will ever be of any use to us in our quest to explore the universe. I think that question have been asked since the dawn of humanity. A more recent determination. JFK's eternal speech at Rice University on September 12th, 1962 setting the goal of the space race during the 1960's. https://www.youtube.com/watch?v=g25G1M4EXrQ |
bluestar Send message Joined: 5 Sep 12 Posts: 7015 Credit: 2,084,789 RAC: 3 |
Getting back at this and giving it a thought, because I did not find the correct word here. But time is definitely a property of space. A continuous wave, not necessarily sinusoidal, is a one-dimensional object being located in space. Because we could be viewing this wave from its side, it becomes two-dimensional instead. If I had to travel along such a wave, only the speed I am traveling at would affect time itself and then only in relation with some other object, which could happen to be more or less stationary. But the faster I am traveling, at the same time relative time is supposed to be slowing down, while the time it takes to complete the journey is shortening down. So, if such a wave happened to be light years from end to end when measured in a straight line and I happened to be traveling at close to the speed of light, I would only become a couple of years older, while my relatives, waiting at the other end of the wave or line would have ceased to exist a long time ago. The mentioned phenomenon of Time dilation would make two clocks showing different times if traveling at different speeds over separate or different amounts of time. Still, we know that relative distances and speed for separate objects are constant with respect to each other, according to the Theory of Relativity (needs a look-up for the exact contents). To me this looks like either the distance being traveled suddenly has become much longer, or maybe the speed itself, even though large, may no longer be a factor either. Could it perhaps be that the speed of light, c, could be either proportional, or maybe inversely so with the distance that needs to be traveled, since gravity may not necessarily be the most important factor? For now the initial thought in my head about this went away. Perhaps it should be important to make a difference between a wave as being a shape and that being related to the property of a wave compared with elementary particles. Electromagnetism should be easier to explain, because as far as I know, a photon is a massless particle and therefore could be having the property of a wave when it comes to its motion. Still it is not related to gravity in any way, regardless of being either matter or energy. The only thing we know is that the singularity is the point in space where gravity becomes infinite over a certain area, or volume of space and that time ceases to exist, or perhaps comes to a complete standstill. Until recently, gravity was only being associcated with matter itself. Now we know that gravity could be present by means of waves as well, which indicates the presence of energy. Next we assume that energy is present because of radiation, which is the result of such particles traveling at speed. https://en.wikipedia.org/wiki/Photoelectric_effect I need to either finish this up, or perhaps come up with some more thoughts in order to explain the original subject a little more better. |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
The big question is whether they will ever be of any use to us in our quest to explore the universe. What? whether black holes and singularities will help us in our quest to explore the universe? I didn't anyone had thought of black holes that long ago. Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
I didn't anyone had thought of black holes that long ago. Well, Karl Schwarzschild did that long ago. He provided the first exact solution to the Einstein field equations of general relativity, for the limited case of a single spherical non-rotating mass, which he accomplished in 1915, the same year that Einstein first introduced general relativity. https://en.wikipedia.org/wiki/Karl_Schwarzschild |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
Pierre-Simon de Laplace (1749-1827) had already foreseen black holes basing on the corpuscular theory of light by Newton. Gravity would bend their trajectory so they would fall back on the light source. Tullio |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
Pierre-Simon de Laplace (1749-1827) had already foreseen black holes basing on the corpuscular theory of light by Newton. Gravity would bend their trajectory so they would fall back on the light source. Pierre-Simon de Laplace. Now I'm feeling back in the classroom doing math:) https://en.wikipedia.org/wiki/Laplace%27s_equation I didn't know he had foreseen black holes but there you go. @Bob I hope that you dont mind my paraphrase. "My fellow Americans, ask not what science can do for you, ask what science can do for your country." |
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