How can physics justify the big bang?

Question

Newton verified by Einstein propossed all forces are equal and opposite

Answer 1

It is based on observation of Radiation measured in the space of the Cosmos. It is Basically Entropy of Energy being dissipated in the Universe per Unit temperature.
It assumes that the Universe originated from a singularity that dissipated outwardly form a central geometrical volume.
It implies that the Universe was created form the inside of that volume.
However it does not mean that is what really happened. It could have been created from the outside in rather that inside out.
There is no real positive ID how the Universe was constructed.
It is more likely that the Universe was not created as the Big Bang theory alludes to. And that experimental observation may not have been correctly interpreted.
Hence it is difficult to judge whether the Justification of the Big Bang theory holds water or not. We could be all wrong. And there is no way to prove who is right and who is wrong.

The Big bang theory originated from George Lemaitre.He postulated a premordial mass to be the initial substance of Creation. However we really are still questioning what he meant.Was the premordial mass a singularity or was it really the initial creation of the space substance the singularity?
This is the million Dollar question that Physics could not answer.

As per Einstein =He defined Gravity Energy not as forces as equal and opposite but as distortion of Space within the Geometry of a mass that is present ,hanging in space.

Answer 2

The Big Bang Theory is justified by (1) the observed expansion of the universe, (2) the chemical composition of the universe, and (3) the direct observation of the Big Bang as the Cosmic Microwave background.

I don't know what connection you're trying to make to Newton's Third Law.

Answer 3

What has Newton's Third Law got to do with the Big Bang?

The Big Bang has been inferred from the chemical composition of the universe, it's observed expansion and the background radiation which, when it was discovered, was more or less exactly what theory predicted it should be.

Answer 4

All forces are equal and opposite, but not all processes are. For instance, if you pop a balloon in space, all of the gas will expand away from where you popped it, more or less equally.

Gravity is another example of a process that only works 'one way'.
So, too is entropy, which always increases.
So, you need to expand the context of your idea. If you like, you can think of the balloon analogy when it comes to the big bang. It's simplistic, but it might answer your current concern.

Answer 5

the problem is you cant comprehend anthing befor the big bang as we are allways told that was the start of everything, Its partly true as there was nothing but empty space befor the big bang and thats what everything is expanding into infinent nothing there is no end to the space and the universe will keep expanding into it forever long after all the matter that is the universe has died try and think of the big bang and the universe all the matter and the empty space as two different thing and its easyer to understand problem is people think of the space as part of the universe its not its simply nothing i dont think it will colapse on itself as some people do i think that in the future everything will die out and disaperar and when there is nothing left but the empty space there will be another big bang kind of like a wave

Answer 6

it is an isolated interesting theory. may be perfectly true. but that still doesn't account for so much else. there is matter and energy we agree but we don't agree on space. even if all the matter ever in existence was compressed into the size of a bb the space surrounded this bb. when the bb blows up, it spreads into some of this space.

that is a partial explanation of the whole cosmos, i think. that is like a tadpole asking the frog what is it like up there on the bank? a zen thing. invalid answers? certainly still leaves me a little mystified and wondering that if you keep going and going through space do you just come back to where you started? humm. that ain't right! i think nobody can imagine what it all means and that means have nothing or spiritual interpretations of space and what other aspect of existence we are missing. i mean, heck, that other aspect or dimension might be some sort of spiritual aspect we cannot yet understand.

Answer 7

All forces are equal and opposite. Have you seen an explosion? The force is generated from the centre of the blast and propagates outward, equally in all directions, except where an object blocks (i.e. provides a counter force) the blast.

Newtons 3rd doesn't just apply to external forces applied to a toy!

JBV^_^

Answer 8

Your point being?

(Hint: in a spherically symmetric isometric expansions all forces are by definition balanced and equal)

Answer 9

Because 'red shift' shows that the universe is expanding and must therefore have originated as an explosion....

Answer 10

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