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what was there before the big bang, what coused it, why? is that the beggining of time? how and when will the time end? if it ends....

2006-12-22 06:49:55 · 18 answers · asked by pa v 1 in Science & Mathematics Physics

18 answers

The sun will explode and invelope the earth in 5 billion years. The earth has been here 4 billion years and was formed by millions of rocks crashing together.

As for time on a greater scale, the universe was created 13.7 Billion years ago and there are many theories as to how it will end. One theory that no-one else has mentioned, and that i believe is this...

Eventually the universe will stop expanding due to it's own forces of gravity. Then it will begin to retract in on it's self and eventually will implode in on it's own gravity and then either re-explode or fall into a blackhole of it's own creation and re-explode in another dimension where the laws of physics may be completely different. Then it will all start all over again.

I believe this has always been the case and there was no beginning and there will be no-end. This has been happening for an infinate period of time into the past and will continue for an infinate period of time into the future.

That may seem impossible to accept but if you think about it, everything else in our universe goes round in cycles. Life is based on a cycles of life reproduction and death. The seasons are based on cycles. We exist simply to experience the wonder and emotion of life and to continue that with our offspring.

Saying when did the universe start is a bit like saying where does the earth start? If you're travelling along the earth it has no beginning and has no end. It just carrys on in cycles forever. Our human minds are just too simple to comprehend how that can be possible in any other way, it's as simple as that.

2006-12-23 05:44:58 · answer #1 · answered by Alex 2 · 2 1

Your question is likely a philosophical one. To answer it you have to answer the question of what is time, and that question has plagued scientists from the earliest.
But, and very basically, time and gravity are the same thing. Einstein showed that time is not constant but can be compressed and expanded with respect to an observer. Now you are in the realm of quantum mechanics and relativity.
To us on a daily basis, time is an artificial construct upon which we base everything: when the bills are due, how old are we, how old is the earth, etc--it gives us a way to describe reality.
But when will time end? Entropy is a thermodynamic concept that tells us that the expenditure of energy can only occur for a finite period of time after which no one is quite sure the outcom. So time will end when man stops using it measure something else; and this will not likely take place until after man has gone, say ala Arthur C. Clark in Childhood's End.
A wonderful question.

2006-12-22 15:59:03 · answer #2 · answered by kellenraid 6 · 0 1

Scientist has studied the sun and the sun's emissions.
The Scientist has determined the sun is around 12.6 billion years old.
Therefore, if it (the sun) were a time clock and the sun started at 6 am and 6 pm the sun would go out they predict we are at about 10:30 am.
Therefore, you do the math and figure out when we may end.
The Scientist also discovered and has determined the sun is much older than first thought, by approximately 2 million years.
Part of the process, which the Scientist uses to base their theory on, is; time light travel and distance.
Thank you hope you find the site below exciting to read.

2006-12-23 12:45:45 · answer #3 · answered by sail_on_sailor 1 · 0 1

The Big Bang is NOT a theory about the origin of the Universe - its really only to do with the inflationary phase just after the 'singularity' that started it all off. If you want to read about one idea about possible solutions then you can look up the Ekpyrotic scenario in which different universe collide in a higher spatial dimension.

Time as we know it began with the beginning of this universe, this expanding spacetime bubble we find ourselves in. Shame on those who said time will stop when we stop counting. As if not looking at your watch does something to the Universe. As far as we know time will go on forever because it looks like the Universe will keep expanding - its actually accelerating away from us. Before we knew that we suspected time would end in the Big Crunch, which is the name for the end result of a universe collapsing back on itself, some think the universe will accelerate enough to tear space and this is called the Big Rip.

Simple answer to your question is time begins and in theory could end only with the start and end of the universe because they are part of the fabric of our universe. If you wish to investigate this you will find Einstein's theories of relativity a fruitful area of research.

Kind regards.

2006-12-22 15:18:13 · answer #4 · answered by Anonymous · 3 1

Our universe formed when, in another spacetime region (now disconnected from us), a large amount of vacuum energy randomly happened to appear. This vacuum energy gathered densely enough that it formed an event horizon around itself and entered a new spacetime region (the interior of a black hole) before it could dissipate.

That's how our universe began. We're in the position of a child born to a female astronaut after she fell into a black hole, and, right after we were born, our mum died. We have no way of knowing anything about the place where she was born.

The event horizon at the boundary of our universe is known to us as "the beginning of time." The dimensions of time and space inside our universe have no relation to the outside. In other words, from the outside, our universe might be a transient vacuum fluctuation - blip! gone.

So time began with the Big Bang. It will end with the last event in our universe, about 1.0E+141 years from now. But most of that span of time will be useless for any purpose.

The last star will burn out in about 1.0E+14 years. If protons decay at all, they'll be gone in about 1.0E+50 years (they'll become photons, positrons x 2, and electrons x 1).

2006-12-22 15:27:31 · answer #5 · answered by Anonymous · 1 1

first of all think of what TIME exactly is

time for us is the duration (or lag ) bw occurring of 2 events.
An observer notes the duration of one event and calls it the 'standard time'
now if he sees THAT when some event occurs than his standard event occurs 5 times ,then he says that the event he was observing has occurred in '5 units of time' set by him.
take an easy (but quite wrong)example
suppose u set ur heartbeat as a standard event and u find that 2 heartbeats occurs while u take one breathing. so u say that 'time duration ' of your breathing is '2 heartbeats'.
now heartbeat is ur unit of 'time'
this is 'quite wrong' bcos heartbeat is a variable quantity by external factors such as exercise which can give 2 diferent results for a same event.

but here is a twist now
Theory of relativity says that the durations of occurrence between one event may be DIFFERENT for 2 different observers.if person moving in a very faster car than u compares yr breathing form his own heartbeat then he find that u breath when he takes (say) 1 heartbeat.so his time is slower than ur time.

if time is lag of occurrence between events then it must have started with the first event occurred in the universe.bcos before it there was nothing whose 'duration ' is to be observed.if big bang was first event of universe then time surely will have started from big bang.
But recent advancement of science says that the big bang is just one among a series of clashes between 2 parallel universes.so time cannot start from big bang
BUT to our pity no one knows what the first event in universe was
or there was no 'first event'.
similarly time will END when there will be NOTHING. not our universe,not stars,not black hole and not even the empty space which contain nothing.!!!!!!!!!!!!!!!!
but either this situation will not come or it is out of thinking capacity of our mind to think of nothing or thinking of a universe where there is 'no first event'.

so we can quite safely say that the quantity which we measure and call as TIME neither had started nor ever end !!!!!!!!!!!!!!!!!!

2006-12-22 17:44:19 · answer #6 · answered by Anurag ® 3 · 0 1

We are able to know what time is, but other that it being formed at time of creation, no one knows.

Were you to look at the physics trilogy you would find that all forms of physical existence have as their basis that of physical time. Physical time is what all forms of mass and energy are composed of. Were this not true, different events would disappear because they would not be of the same physical duration as the surrounding universe. This value, that of "c2" also describes the actual duration of our physical existence before it passes into the past. It also states that there is no possible manner for mankind to interact with either the physical past or future - both exist only in present time.

http://timebones.blogspot.com and
http://360.yahoo.com/noddarc may be of interest.

2006-12-23 13:22:06 · answer #7 · answered by Anonymous · 0 0

There were two atoms on a collision course, and after time, there will be to atoms on a collision course again....

but time is our understanding of the fourth dimension, and it started when the Babalonians divided the solar day into multiples of 60. Thus we have a year of 5 x 60 days, a day of 4 x 6 hours, a minute of 60 seconds. the old week was 60 hours long, or 5 days, but the Egyptians mucked that up.

2006-12-22 14:58:53 · answer #8 · answered by DAVID C 6 · 0 3

time began when man began and created a measure for it. time will end when man stops counting.

Before the creation, there was nothing but space, as far as humans are concerned. Gasses, rocks, proteins, electricity, water.... etc. Scientists have one theory and Christians have another. The fact is, neither is correct on its own. If Christians accept science and science accepts faith, the real answer may pop up in the middle. Time is a man-made measure, but time is also eternal and infinitely unmeasurable. Just because all mankind and the planet earth cease to exist does not mean that nothingness will cease. As long as there is one tiny movement somewhere in the vast universe, time still goes forward. Therefore, there will be an end to your time. There will be an end to the planet's time. Our galaxy may collapse and turn to nothingness, but time, itself, will continue to elapse.

2006-12-22 14:58:03 · answer #9 · answered by mad_madison_maiden_x 4 · 1 3

See Super Somethings' answer......he's got it Right
A lot of the answers from the others are mixing and jumping across the contexts of time.
In the context of measuring, Currently, man measures time far more accurately than any other entity he has attempted to measure.
This should tell you something about time then, now shouldn't it?

2006-12-22 16:37:36 · answer #10 · answered by James O only logical answer D 4 · 0 1

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