when was time began? is there a boundary for space?

Answer 1

Einsten's famous quote goes:
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."
There is little known about the bounds of the universe.

There is an edge to what we are able to see and could ever possibly see in the universe. Light travels at 300,000 kilometers per second. That's top speed in this universe—nothing can go faster—but it's relatively slow compared to the distances to be traveled. The nearest big galaxy to our Milky Way, the Andromeda galaxy, is two million light-years away. The most distant galaxies we can now see are 10 or 12 billion light-years away. We could never see a galaxy that is farther away in light travel time than the universe is old—an estimated 14 billion or so years. Thus, we are surrounded by a "horizon" that we cannot look beyond—a horizon set by the distance that light can travel over the age of the universe.

On the beginning of time, Professor Stephen Hawking sais:
"All the evidence seems to indicate, that the universe has not existed forever, but that it had a beginning, about 15 billion years ago."

Answer 2

"...when was time began?..."
Time is not a NATURAL feature of the universe, therefore it never 'began.' There is no Cosmic Master Clock ticking away the correct time for the universe. Time is nothing more than an invention of sentient species to separate events into 'past,' present and 'future.' Even our concept of time is strictly relative, not absolute. For example, right now it's 11:35 pm on the west coast, but in New York City it's 2:35 am. Which time is the correct time? They both are!

"...is there a boundary for space?..."
If the space of our universe has a boundary then there would have to be some 'thing' larger beyond that boundary, or as many scientists speculate there would have to be universes parallel to our own. It's very possible that such is the case, but at this time there's not a single shred of hard scientific evidence that such is the case.

Answer 3

Much can be said in responce to this question but the most any human being can do is speculate. Your fist question can be answer very simply, time began when God created the universe if u don´t belive in God (I do) then we can say then that time began when man began to measure it. Your second question is a little more scientific, in my opinion space does have limits. Why do i belive this? because in the mid 20th centurie Albert Einsteine was experimenting with some gravitational light and space formulas.Einsteine´s famous formula (E=mc2) (this is the formula as first proposed by Einteine) had one fundamental flaw: the formula was imposible if the universe was infinite. He porposely ignored this factor because he did not belive in God at the time and was a fervent evolutionist. This factor denominated by him as Factor ¨agravating¨(because it annoyed him) was discovered many years later by a mathematician who just wanted to verify the mathematical presition of Einsteine´s formula. The mathematician broght this to light and forced Einsteine to make this factor relevant in his calculations.(this lead to many complications that were later solved in a semi unsatisfactory manor, up to date this factor is still a problem for all light space gravity mathematical formulas) As a consequence Einsteine converted to cristianity because he saw this factor as solid proof that God indeed had made the universe. ( a short story just for fun) Back to your question, it would be wise to belive that the universe does have boudaries if not for a religious reason then for a mathematical or scientific one, and hey remember these things can´t be really proven so why not??it´s not like if even if it was confirmed that space does have a boundery ( which i do belive) it can be measured in any way. But the facts and proof still remain. so u can make your own educated guess....I hope that even if this didin´t fully answer your question that it would at least get u thinking and give u some base for any assumption.

Answer 4

Time is an attribute and a metric that is not necessarily present in all conditions of cosmos. The universe that we're familiar with has had "time" since the Big Bang, but it would be wrong to think that in all cosmic history, metric spacetime hasn't ever existed elsewhere. As a crude analogy, a metric spacetime can be thought of a woven fabric, with a regular pattern of lines. Now imagine a huge tangled mess of loose fibers with patches of woven fabric here and there. The universe that we know of is like one of those woven patches, while cosmos is everything, including regions where metric spacetime is meaningless. In such a mess, it's also meaningless to assign a direction of time or space for all cosmos---only for the woven patches it has any meaning.

Time exists only if there exists a Green's function for the differential operator of a given causal system. Such Green's functions do not always exist, and in those cases where none exist, time cannot exist as well as a parameter, even though the system is still a causal one.

Answer 5

Time began with the big bang, 13.6 billion years ago. Space has no boundaries, even though it is of finite size. The usual analogy is to compare space with the surface of a balloon, with dots painted on it. An ant crawling on the balloon never encounters an edge, even though the balloon is obviously of finite size. Imagine the balloon inflating, and you have a model of our expanding universe.

Answer 6

time began at the Big Bang!!!
events before theb ig bang, are simply not defined, because there's no way one could measure what happened at them.so big bang is beginning to the universe, and of time itself.
as we look out at the universe, we are looking back in time, because light had to leave distant objects a long time ago, to reach us at the present time.vhis means that the events we observe lie on what is called our "past light cone". The point of the cone is at our position, at the present time.

Answer 7

As best astronomers can determine, time began with the big bang approximately 13.7 billion years ago. Things have been going downhill ever since.

Answer 8

Time has always existed for our universe and I don't believe in the so-called "big bang" theory. There is a definite boundary for our universe (maybe it resembles a "sphere" !), but what exits outside our known universe is beyond my comprehension !

Answer 9

a black hole is a real tear in space time over allmost all dimetions in our universe space time unversal rotation such as a black hole twisted backword would be space time but allot of enery in one place now hyperspace is the universal tim of the universe twisted to the right or rotation of the galaxcy a white hole emits energy from another universe and a black hole take energy out it is a balance that keeps each universe alive there are only two universe's the amount of enery to make a black hole in our universe you would have to use a huge sphere of space time in real life science and then twist time and space so teleportation is not possbille bu this is molecule lasers and teleportation confilct of what possible www.beyond-science.com or www.beyond-science.net

Answer 10

Time and space are very complicated things to analyze. When time begins, is only assumption by everybody. Space is finite or infinite is still a mystery for everyone.