juggalo2111
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Do black holes become larger and larger with all the matter and light they consume? And is it possible for a black hole too merge with other black holes?
juggalo2111 said:So is it possible for a black hole to consume all the matter and light in the universe and then merge together too create another big bang ?... Recreating everything as it was? Putting us in a never ending cycle of life and death? What do you think?
Not likely. This would require the universe to stop expanding and recollapse in on itself. Right now the expansion of the universe is accelerating, and if this continues, in the far future most of the matter in our universe will continue moving apart forever.juggalo2111 said:So is it possible for a black hole to consume all the matter and light in the universe and then merge together too create another big bang ?
juggalo2111 said:So is it possible for a black hole to consume all the matter and light in the universe and then merge together too create another big bang ?... Recreating everything as it was? Putting us in a never ending cycle of life and death? What do you think?
Given that the rate of expansion is now speeding up, chances are forever. The simplest models of the universe do this. It takes some very convoluted models to have our universe recollapse back in on itself in the distant future.nag555 said:But the unanswered question is how long does the universe expand?
This isn't true. Energy is not conserved in an expanding universe. Early-on, during inflation, the amount of energy increased by somewhere around 10^{80} or so. For much of the history of the universe since inflation ended that amount of energy has since been decreasing. More recently it has started to increase again.nag555 said:If one is to believe that universe has started from a big bang it means the energy of the universe should be equal to the energy that is released from the big bang which should be finite.
. Such a statement is too stubborn. You should be open minded before evaluating any such statements. You give me 100 references to prove your hypothesis. I give you another 100 references to prove that's not correct. A highly debatable topic. Not Einstein or not even Noether decides if energy is conserved in time translations or various frames of references. It should be your gut feeling that ultimately answers. Tomorrow some other comes and says i found something that travels faster than light or could go below 0K which might be true. How can we just support all these theories based on baseless assumptions.Chalnoth said:Energy is not conserved in an expanding universe
nag555 said:. It should be your gut feeling that ultimately answers.
nag555 said:If one is to believe that universe has started from a big bang it means the energy of the universe should be equal to the energy that is released from the big bang which should be finite. In such an instance universe with such high energy intensity tries to reduce its energy intensity by expanding into outer space and coming in equilibrium with outer space. By its expansion it tries to reduce its energy density measured by the background cosmic microwave radiation presently about 2-3 K. Universe expands until its finite energy gets equally distributed such that temperature of the cosmic microwave background radiation = 0K. Once this expansion stops again universe starts contracting, black holes start merging and everything gets collapsed into one single point and again the big-bang happens. So it should by cyclic.
Presently acceleration of the universe doesn't mean the universe expands infinitely. Where do you expect the universe to generate the required energy to drive the acceleration of expansion of the universe forever(Energy cannot generate by itself). The present acceleration phase is fallowed by a deceleration phase like a damped sine wave where acceleration happens during the rise of the curve and deceleration happens during the fall of the sine wave. But ultimately the curve gets completely damped when its energy content is absolutely zero. Similarly the acceleration and deceleration phase all stops once the energy of the universe has been completely expanded into outerspace. You can verify this damping effect everywhere in nature. see how waves transfer its energy to sea shores. they are infact damping sine waves transferring the weight of the atmosphere to shores.
juggalo2111 said:Did the big bang create space? Or was that already there? Does the universe have an end point? If so Does the universe have an end point in which the gravity is so strong nothing could escape? Creating a rebound affect and driving everything back too the center? Too recreate another big bang??
Huh? No. It's simple fact. This is the way the universe is. Deal with it. Others have provided some good reading materials to this effect.nag555 said:Such a statement is too stubborn.
juggalo2111 said:Did the big bang create space? Or was that already there? Does the universe have an end point? If so Does the universe have an end point in which the gravity is so strong nothing could escape? Creating a rebound affect and driving everything back too the center? Too recreate another big bang??
juggalo2111 said:Are my questions to dumb to answer? Or what? I would like too know more information.Did the big bang create space? Or was that already there? Does the universe have an end point? If so Does the universe have an end point in which the gravity is so strong nothing could escape? Creating a rebound affect and driving everything back too the center? Too recreate another big bang??