how do they know when the "so called" big bang happenned?

Answer 1

The Big Bang is a scientific fact. When this happened scientists are still trying to figure out. The important thing to remember about the Big Bang is it proves the existence of God.

This is what Albert Einstein, the greatest mind the world has ever known, said about the it.

Einstein's theories have been thoroughly proved and verified by experiments and measurements, but there's an even more important implication of Einstein's discovery.

Not only does the universe have a beginning, but also time itself, our own dimension of cause and effect, began with the Big Bang.
That's right -- time itself does not exist before then.

The very line of time begins with that creation event. Matter, energy, time and space were created in an instant by intelligence outside of space and time.

About this intelligence, Albert Einstein wrote in his book "The World As I See It" that the harmony of natural law "Reveals an intelligence of such superiority that, compared with it, all the systematic thinking and acting of human beings is an utterly insignificant reflection."

He went on to write, "Everyone who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the Universe--a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble."

Pretty significant statement, wouldn't you say?
Peace and every blessing!

Answer 2

No matter what anyone tries to convince you about what came before the Big Bang, at this time there's only one *correct* answer => UNKNOWN! All the Big Bang Theory actually states is that the universe used to be smaller. That's it...! It is *NOT* a creation story. The Big Bang Theory is simply an explanation of how the universe has evolved and developed over the last 13.7 billion years. It makes no assumptions about "where" stuff came from, it merely evaluates the observations and the data we have acquired, and gives us a relatively complete model of how the universe has behaved since about 10^-30 (that's 0.0000000000000000000000000000001) seconds after the Big Bang. Anything before that point in time we do not know and can not measure because the laws of physics, as we understand them, break down before that time... you reach a *mathematical* singularity, where we just don't know what happened, and how space, time, matter, and energy behaved, because the laws of their behavior would not have been in place yet. So while you are curious as to "where" and "how" it all began, the Big Bang theory can not take you there. It can get you as far back in the past as we can accurately measure.

Answer 3

The rate at which the universe is expanding is slowing down. If there was a big bang, then the subsequent explosion would have been slowing down since it first happened. Calculations have been performed to work out the initial velocity of the explosion and the current velocity and rate of deceleration (I have no idea how any of that was done). If you work out the distance from big bang central to the edge of the universe, and then calculate the amount of time it has taken to get there, taking into account the constant deceleration, then that gives you the age of the universe. I think.

Answer 4

They really do not know and science can only make an "educated guess" which is anything they can get away with pulling out of their behind. Which they get a lot of money and recognition for until their theory is proved to be wrong. Look at global warming the scientists were paid a lot to say it was not an issue and now it is pushed into the mainstream because their is too much evidence that the world is dying. Because of that the morons decide to change their mind so they can look good. Hint human thinking is always flawed no matter what empirical source it is coming for think for yourself first.

Answer 5

no one ever claimed to know if or when the big bang happenned but conjecture based on the facts presently available suggest the possibility . Personally I prefer the take of one of the oldest religions in the history of the world that states the biginning came from avidya if I spelt it correctly which tranlates loosely from the Hindu to mean ignorance .
this is spiritually why intelligence is the such an important development to evolve and correct the nature of life .
And after all what happenned a billion years or more ago has little impact on the present to me . Be kind and you follow all religions and non religions in morality .We can prove we exist and morality that favors life is as easy to understand that even a child can get ; so why do people kill for misleading and defective thinking that a child can see through...?

Answer 6

You will have to ask god because there were no other ears there to hear any kind of noise let alone a bang.. It is a theory. If God said, "Let there be light", and it suddenly happened in a complete void, then pehaps it appeared to bang into existance, but even then, something would have to hear it to have a bang. Any sound needs a receiver and a transmitter to make it exist.....Sorry no "big bang" theory.....HUh? what? sorry I didn't hear anything....

Answer 7

The universe is flying apart at a known rate. You can calculate back to when it all would have been in a single point.

Also Hubble loses the ability to see things at about 12-14 billion LY, not because of resolution, but there just isn't anything to see. That is consistent with the 15 billion year old age.

Answer 8

Nobody does. The big bang is a working scientific theory that has a lot of evidence backing it up. I'll take a working scientific theory or a religious fairytale any day of the week. One is backed by evidence, the other has none.

Answer 9

A question similiar was ask in the Bible book of Job:

(Job 38:4-7) Reads: "And God [Jehovah] proceeded to answer Job out of the windstorm and say: Who is this that is obscuring counsel By words without knowledge? Gird up your loins, please, like an able-bodied man, And let me question you, and you inform me. Where did you happen to be when I founded the earth? Tell [me], if you do know understanding. Who set its measurements, in case you know, Or who stretched out upon it the measuring line? Into what have its socket pedestals been sunk down, Or who laid its cornerstone, When the morning stars joyfully cried out together, And all the sons of God began shouting in applause?"

PS. It is makes me wonder how mankind even though he was not yet born can come to such conclusions.

Answer 10

Using Hubble's constant (I think) and cosmic microwave background radiation. I doubt you want anyone to get into the sticky details. It's more of an estimate: no one claims to KNOW when it happened, or if it happened exactly as scientists are predicting. It's just the best idea we've got so far.