Is the energy of the universe constant? yes....no? why?

Question

"energy can niether be created nor be destroyed", so where did all the existing energy come from? is big bang singularity -an exception to law of conservation of energy. then even black hole singularity and etc should be an exception......that means energy is being created and destroyed . so how come energy (of universe) is constant?

Answer 1

There is still alot of science to be covered before any of us can come up with exact figures/know how/knowledge. Creationism, as someone stated sounds interesting.

guessing and using known and accepted measures may not fit the picture you are looking for.

If the universe is connected to many universes...then it may lead us closer to understanding how this universe came into being. The idea of a singularity opening up and distributing matter and energy into a new bubble or universe sounds plausible. The other universes feed the newer universe with raw energy/matter. Like a baby being created and born.

The energy had to come from somewhere, no doubt.

Being constant. Doesn't sound plausible. It would fluctuate according to the singularity inflow. Perhaps all universes are connected all the time through singularities. Through black holes which are created here and in other universes. A thought, when a star collapses and turns into a black hole, it creates this high dimensional singularity in space...which then connects to another universe through another higher dimension. Who knows. Matter going into the black hole as to go somewhere.

Quickly, I was working with my potatoe plants...ntoiced how the new small potatoes are connected together on tendrils. It's like looking at many universes, connected together via these tendrils/singularities. The main plant, which has the roots/tendrils is like the super universe or Godhead. Makes you wonder....is there more to this than meets the eye. Are we understanding things...or is there MUCH MUCH more to be learned about 'all of this'.

Answer 2

12 years ago, i would have said that the total net energy of the Universe is zero, and constant.  With Dark Energy, i'm not so sure.  I'm not comfortable with what we know about it - and what we don't know.  But Alex Filippenko still seems to think that it's constant and zero, and has been thinking about it more than me.  He gave a lecture in 2006, available as a podcast on the net.

You might also consider the Scientific American article from 2005.

Answer 3

Great question...

I don't think the big bang  created energy. All the energy in the universe was contained in the singularity before the big bang... or so the theory goes.

The theory really breaks down in that area anyway. No one knows where the initial point of energy came from. God? A super-race building another universe?

Point is... the energy was always there.. and will always be there... or so the theory goes...

Answer 4

the answer to this question is tht big band is making the earth expand (with an on going energy------"the "blast made tht energy) ....... the universe is expanding and is also making energy (being released by objects like sun/star or things tht r being destroyed)and is also using new energy to make new stars adn heavenly objects

Answer 5

  The universe is a finite entity so it has a maximum size when it reaches it's maximum size it's energy is maximum and it will remain in that state as long as space-time pulse that started it continues.

Answer 6

We've learned from experience that energy is always a constant provided the system under study is "closed", wich means that energy can not leak out or in.  Now, I am not sure if the universe is a closed system, but I think not, because galaxies can disappear across some distant horizon beyind which we can not see.  Thus eventually it will contain a lot less energy and matter than it does now.

It is not necessarily the case that energy was created by the big bang- it probably existed before that in some form that we don't know of.

Finally, one more point:  I'm not sure if the concept of energy has meaning beyond a utilitarian one.  People have always defined it in such a way that it turns out to be conserved, but as it happened, the definitions had to become more and more abstract.  I am quite confident, however, that whatever new forms of energy will come up, it will continue to be conserved.

Answer 7

no credible scientist actually says that the big bang was created from nothing. only people that dont understand the theory try to say that. the current view of science is that the energy did come from somewhere, whether it has always existed (which i dont like), or that it came from something that predates the universe.

what scientists say is that there is no way of knowing where it came from for 2 reasons.

1. the universe was once smaller than planck length (1.61625281 x 10^-35 meters), and younger than planck time (5.391214 x 10^-44 seconds). see, if you try use anything smaller than planck length or planck time in any equations you get answers that make absolutely no sense in the real world. so we have no idea how to mathematically calculate what happened directly after the big bang, because when we get to sizes and times that small our math doesnt agree with what we know about reality.

2. the big bang was the start of spacetime in our universe. so saying "...before the big bang..." as some people do, is a statement that makes no sense at all. if the big bang created time, there was obviously no time prior to it. if time didnt exist, prior to the big bang, the phrase "prior to the big bang" actually makes no sense at all, because that period didnt exist. this period is called the Augustinian era. it really makes no sense to me to name a period that doesnt exist, but the man that named it was a devout christian. he figured that god must have existed then. but back to the point...its the same with space. some people ask "...what existed before the big bang..." well ignoring the fact that there was no before, the only answer is "nothing. a type of nothing that our minds cant understand" see, when people think of nothing they think of darkness. but really, that area still exists. your eyes have to observe an area for it to be dark, there has to be space for that. so the only way i can explain it is that not even darkness existed.

so all that being said, how does that impact the big bang? well if there was no space before the big bang, and there wasnt even a before, yet something caused it, what was it. it had to have been something outside of our universe. maybe god if you choose to believe that, maybe something else. maybe another universe. maybe an 11 dimensional brane as predicted by M-theory. but whatever it was, it had to have been outside of our universe. but we are forever confined to our universe. we cant observe anything outside of it. so whatever caused the big bang is forever out of our reach, because its simply impossible for us to observe it.

Answer 8

Good question! LOL, I say no it's not constant. The problem with science is, if you put multiple theories to the test at once you're going to run into a problem somewhere, if not a contradiction. There really isn't a good way to answer this question and defend the "integrity of science" without involving Creationism...It's amazing how humans would rather contradict themselves, than to acknowledge a Higher Power.