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The latest thinking about black holes is that they may not collapse into a singularity at all, but may actually explode back with  a “big bounce” once the diameter of the black hole reaches the Planck Scale or maximally compact state and once the “big bounce” diameter expands to that of the event horizon, it would release all of the information that till then had been trapped inside the black hole, back into the universe.

My question is this, if in fact the “big bang” that led to the creation of our current universe was the result of the “big bounce” associated with the collapse of a prior universe, is there any measure of entropy that could detect this. In other words would any measure of entropy differ between the universe caused by “big bounce” n and the universe caused by “big bounce” n+k?


John Egenolf Asked


The question is left for the visitors to answer


physics, particle relationships

English: Shows slices of expansion of universe...
Shows slices of expansion of universe without an initial singularity (Photo credit: Wikipedia)


Was every event created at the moment of the big bang by the position of every particle at that moment? Every action is based on the action of the moment before and must obey the laws and forces of physics therefor suggesting every element, compound, and even human thought were predetermined by the exact position of particles/energy at the begining of time.


Asked  Paul Godwin (freshman Sac City College)


Is the universe expanding or are we getting smaller?

English: Shows slices of expansion of universe...

English: Universe as per Jainism
English: Universe as per Jainism (Photo credit: Wikipedia)

Is the universe expanding or are we getting smaller?

Asked Dany Burton

English: raisin bread model of the universe

The Question is left for the readers to answer

Relativity, Black Hole and some doubts

In the model of the big bang I would like to pose the following question. My understanding is that

1. The expansion of the universe is accelerating and

2. The radiation or shock wave to keep the analogy going is something we can measure.

My question is this. While we can rewind the clock to a single moment when the universe was infinity dense how do we know that this was a moment at all. Let me elaborate. As the universe expands could time or space time not also expand and if so than when the big bang occurred is something we cannot measure merely by rewinding the clock. If we are experiencing time at a given rate when the universe is at its current size would time not be being effected by the expansion also and if so would that mean the there was simply no start and no end to the universe? Perhaps the big bang is not as accurate as we may wish and perhaps it is our ability to comprehend that is limited. I propose there is no start or end to the universe it has always and will always be as it, and we, cannot exist without time and as such these two objects or things form a symbiotic relationship with each other. While the universe expands so does time and its effects are reduced in line with its expansion. Does this sound plausible and if not why?

Weight and inertia on moon

Say True or False; An object on the Moon weights 1/6 of what it weights on the Earth. Therefore, the object has less inertia on the Moon.( Justify your answer)

Answer: The statement is false.

Inertia depends on mass and not on weight. The weight on moon is less not because of a decrease in mass, but due to the decrease in the acceleration due to gravity on the surface of moon.

Inertia depends on mass and there is no change in mass when a body is taken to moon. Therefore the inertia of a body is same on moon as that on earth or anywhere else in the universe, even in a gravity free space.

Is the universe infinite?

Vignesh asked:

Is the Universe infinite in spatial extent?


Aashuthosh.B.Sai asked

We know that it is multiverse and not universe.we also know that a universe expands continuously.if so then wont there be a point when all the expanding universes collide each other and stop expanding?

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