Absolute Zero...doesn't exist?

[yahoo]

Theoritically proposed : opposite to black holes are white holes. Anything falling into such a black hole would indeed be ejected from a white hole -- possibly in a distant region of spacetime (possible in the past or future), or even in another universe.

IMHO

Anything that ceases to exist in the present universe we percieved can be considered as destroyed in its present existince or something.

[Arm0r]

I would put some stock in the while hole theory if we could actually find one.   To assume that a black hole could possibly lead to a white hole in another universe is fine but if this were the case we should expect to have some "white holes" in our own universe, no?

[yahoo]

I think i read b4 that the big bang was actually a white hole. idk i forgot how the proposal said.

Anyway as argued there is no observable evidence in our present universe that can prove white holes do exist. Likewise , the existince of white hole in this universe would tend to violate the existing laws of physics. However if such phenomenon do exist, I think its on another universe as the law of physics there would be entirely different.

[quadz]

I've been really into reading about space and such but I find it hard sometimes to pick a starting point and go from there.   The universe is such a huge place with so much to be learned and known and I would love to educate myself more on this.  Do you recomend any books that could possibly get me started?   I would enjoy learning as much about he cosmos as I possibly can, this stuff is just too interesting to ignore.

A couple books I've enjoyed recently, approaching the subject from a broad cosmological view, are the following:

Atom: A Single Oxygen Atom's Journey from the Big Bang to Life on Earth...and Beyond
Atom: A Single Oxygen Atom's Journey from the Big Bang to Life on Earth...and Beyond

  ^ The most poetic, detailed description of events from minute fractions of a second of the Big Bang, forward, that I've encountered.  (Based on extrapolations from our best/current theories, of course.)  I recall laughing out loud around page 70-something, after being engrossed in the book, when I realized, after all this amazing description, we're still only about 4 microseconds now (or whatever it was) from the big bang explosion.

The Five Ages of the Universe: Inside the Physics of Eternity

  ^ Again, based on extrapolations from our best/current theories -- this really puts an emphasis on the far future, the expiration of the last black hole, proton decay, etc.  I read this a couple years ago, but it has really stuck with me.  I.e. even if our current theories aren't sufficiently accurate to predict these future events with great precision, I think the way this book presented the time-scales involved, is worth it... because even if whatever happens is different than what is predicted, it still likely takes place over the enormous time-scales that this book does well in conveying.


Regards,

quadz

[Arm0r]

Ordered both of them, not to pricey at all either.   Thanks for the recomendations, can't wait to get into these.   

[|iR|Focalor]

I have absolute zero idea what this thread is about.

[Sgt. Dick]

I thought about saying absolute zero does exist and then naming a forum poster, but I don't want to hijack the thread 

[|iR|Focalor]

We have absolute zero interest in that information.

[VaeVictis]

I think i read b4 that the big bang was actually a white hole. idk i forgot how the proposal said.

Anyway as argued there is no observable evidence in our present universe that can prove white holes do exist. Likewise , the existince of white hole in this universe would tend to violate the existing laws of physics. However if such phenomenon do exist, I think its on another universe as the law of physics there would be entirely different.

it makes sense to me that if there is white holes that maybe every black hole feeds to a single white hole in the center of the universe, and so while the universe is infinitely expanding its also staying constant because everything returns to the center over time thought that was a cool way to look at it... doesnt explain an overall beginning though... unless there is a white hole in the center of the universe and the big bang is on going from its BANG point with black holes feeding it, proposing that the big bang would have been the beginning and it will go indefinitely meaning time is infinite in the universe

[QwazyWabbit]

Where is the center of the universe? Where is the edge?

If there were a white hole "at the center of the universe" then why is it not visible at some point in the sky? So far, all the infrared and microwave sky surveys show a uniformly cold universe in all directions. Read up on the Cosmic Microwave Background radiation (CMB).

[VaeVictis]

Where is the center of the universe? Where is the edge?

If there were a white hole "at the center of the universe" then why is it not visible at some point in the sky? So far, all the infrared and microwave sky surveys show a uniformly cold universe in all directions. Read up on the Cosmic Microwave Background radiation (CMB).

well the universe is "expanding" by saying its expanding it assumes there is an origin point such as proposed by the big bang theory

[yahoo]

As suggested if a white hole does exist it cannot exist in this present universe that we are in coz the laws of physics does not allow it to exist. We presently understand and comprehend things, events and ideas in a 4 dimensional manner, however it was also suggested that this observable universe we have slowly come to know may be a part of a bubble like 'multiverse" in which different law of physics exist.

[Arm0r]

Atom: A Single Oxygen Atom's Journey from the Big Bang to Life on Earth...and Beyond
Atom: A Single Oxygen Atom's Journey from the Big Bang to Life on Earth...and Beyond

Half way through this one, been reading it for a couple days.  Going to dive into it more tomorrow, simply amazing.

[ex]

If you've read into space and things of that nature I'm sure you've heard of the term absolute zero which is a temp of roughly -273°C....it is classified as a real temp but the strange part is it doesn't actually exist due to nothing actually being able reach that temp..  Below is a snippet of a site with this information (as well as some other very interesting information) that makes this claim, I can cite other sites if need be, confirmed it on a couple others:


http://listverse.com/2010/11/04/10-strange-things-about-the-universe/


"Theoretically, the lowest temperature that can be achieved is absolute zero, exactly −273.15°C, where the motion of all particles stops completely. However, you can never actually cool something to this temperature because, in quantum mechanics, every particle has a minimum energy, called “zero-point energy,” which you cannot get below Remarkably, this minimum energy doesn’t just apply to particles, but to any vacuum, whose energy is called “vacuum energy.” To show that this energy exists involves a rather simple experiment– take two metal plates in a vacuum, put them close together, and they will be attracted to each other. This is caused by the energy between the plates only being able to resonate at certain frequencies, while outside the plates the vacuum energy can resonate at pretty much any frequency. Because the energy outside the plates is greater than the energy between the plates, the plates are pushed towards each other. As the plates get closer together, the force increases, and at around a 10 nm separation this effect (called the Casimir effect) creates one atmosphere of pressure between them. Because the plates reduce the vacuum energy between them to below the normal zero-point energy, the space is said to have negative energy, which has some unusual properties"

So if quantum mechanics makes it impossible to reach this temp why is it classified as a real temp?  Is it simply to say "well, if you could reach this temp, this is when all particals would lose all motion"?  And if all particals can never reach that temp and lose motion is it safe to say after all is said and done there will still be some dynamic to the universe itself? Never growing still and never stopping it's expansion?

Supposedly, in a googol years from now (yes, 10 to the 100th power), the universe will enter the "Dark Era" where all matter, even black holes that have amassed to unprecedented sizes, will burn out due to lack of usable matter to destroy.  The universe will be far colder then, with distance and time being stretched out farther and further.  All that will be left are rouge quarks and sub-atomic particles shooting every which way, and they, along with the entire universe, will be excessively cold.

The universe more than likely will never "stop" growing.  In fact, the empty arena will shoot particles across vast distances rather quickly in a Heat Death universe.  What will more than likely happen is that at a certain point, the forces that bind our universe together, time, space, quantum foam, whatever you want to call it, will eventually break down and disintegrate to a point that the entire universe collapses on itself.

It's like a giant bubble that keeps having someone blow into it.  Sure, it's built to expand, but after a while if you keep on blowing on it eventually the walls get weaker and weaker, and then you get a pop.  More than likely that's what our universe will do.  Of course this (no joke) probably somewhere near a googolplex years from now, so no one will have to worry about it.  Hell, no one will exist anymore at that point...they would have been gone even a quadrillion years from now.

So the answer is, once the universe "pops" it will definitely reach absolute zero.  Not sure until then. 

[ex]

is there an absolute highest possible temp wherein particles would just simply puff out or vaporize to nothingness? whats it called?

Planck temperature:  100 million million million million million degrees, or 10 to the 32nd power Kelvin.

At least that's the number that's been theorized (just like absolute zero, how can you prove it).