White Hole

(thing) by datagirl (6.2 mon) Sat Jan 22 2000 at 17:52:26
White Hole: the opposite of a black hole.

Since a black hole is a region of space from which nothing can escape, the time-reversed version of a black hole is a region of space into which nothing can fall. In fact, just as a black hole can only suck things in, a white hole can only spit things out.

White holes are a perfectly valid mathematical solution to the equations of general relativity, but that doesn't mean that they actually exist in nature. In fact, they almost certainly do not exist, since there's no way to produce one. (Producing a white hole is just as impossible as destroying a black hole, since the two processes are time-reversals of each other, or so they theorize)
(thing) by no comply (1.5 y) Tue Feb 06 2001 at 8:18:35
A white hole is now a fairly accepted theory. What happens is when a super massive black hole (around the order of 10^15 solar masses) evaporates the evaportation accelerates. This evaporation is caused by virtual particle pairs and is explained in Hawking Radiation. The accelerating evaporation causes the black hole to start emitting more and more matter. As it reaches its death throes it starts to emit huge amouts of matter. This is the white hole. The only time a white hole of any magnitude would come to be is in a marginally bounded universe. This corresponds to the q0 term of Hubble's law being between 0 and 1/2. (This is assuming a cosmological constant of 0) Then afer all the mass in a galaxy collects into a super massive black hole some 10^31 years from now it is large enough to produce a white hole upon evaporation. A black hole this large would take something like 10^100 years to evaporate. Thus white holes can, and possibly do, exist but the time scale is far beyond the lifetime of the human race.
(thing) by PopeHypocriteIII (1.7 d) Sun Oct 19 2003 at 7:12:53

Created for The Blood is the Life: A Frightful Halloween Quest.

Message log of the Starship Abeyance (??:?? AM/PM/?)

...And so I reprimand myself for not noticing it immediately. I wish I had, because we are trapped now and my limited intellect foresees no escape. Hindsight, though, is 20/20. Well... it used to be, this morning... sort of. I wish I could explain this to you, so this might never happen to anyone again. It's like some perverse sci-fi film.

I got up this morning and brushed my teeth, neglecting to eat breakfast. Well, I know I ought to have, but I was excited about... no, it wasn't this morning, was it? Well, granted, it was this morning, but not this particular `this morning', if you can understand. I'm sorry, I'm not being very clear... it's very difficult to explain, especially given the circumstances. I wish I could tell you what those circumstances are, because maybe then I could have a record of past events when they happen. That would help, yes indeed. What? Oh, well I'm afraid that's the problem - I can't tell you, because it's very difficult to explain. You see the thing is... there was this bizarre phenomenon. No-one had ever... ever... blast. Where was I?

Overwrite.

Oh, the recording! Yes, that's a good idea. I'll have a record of past present events in the future now - or, rather, when the past comes back and the present becomes the future. Well, when that happens next time. I'm glad I thought of that! Anyway, I got up this morning (or one of many mornings like this one) and brushed my teeth. I can still taste the toothpaste, which is very strange because at the moment I haven't brushed my teeth yet. I didn't eat breakfast because I was so excited about investigating the phenomenon which we discovered. Oh, the phenomenon! Amazing, and terribly deadly. Well... I suppose it wouldn't necessarily be correct to describe it as `deadly', but it might as well be. I wish I could tell you more, but I'm afraid that I forgot what I was talking about. Where was I? Oh, breakfast! I didn't have breakfast on this particular morning. I was summoned to the observation deck because... because...

Overwrite.

The crew is dead. Well, not `dead', per se - but unlike me they're stuck in permanent loops, repeating the same actions over and over. I think that might as well be death. How would you even know you were alive in such a condition? I pity them, I truly do. I don't know how I'll ever steer the ship home without them... although it seems fortunate that the ship's fuel gauge never seems to drop. Our food supplies regularly replenish themselves too - in fact, I believe I saw new supplies in there this morning... and the morning before... and come to think of it, it seems to be a daily event. I don't bother with breakfast most days - I'm always too excited by the idea of... of... damn! I know I was saying something important, too! Oh, the... the... no, it's gone again. And it looks like I missed lunch too...

Overwrite.

Finally, I'll create a message log. I'll start at breakfast, which I didn't have, by the way, as the captain summoned me to the observation deck. The crew had begun acting most bizarrely, repeating actions and appearing to be completely oblivious to all external stimuli. I don't know what I'm to do with them - they might as well be dead. We're lost and adrift in space, with the enormous white eye glaring at us, driving everyone mad - everyone except me, of course. That's why I'm able to create this message log; something has to survive the disaster, even if I don't. I don't remember when I last ate and it certainly wasn't at breakfast. I perpetually wonder what time it is, for all the clocks are broken. They make no sense, turning first one way and then another. Absurd! I'll take consolation in the fact that I don't appear to be suffering any injuries and the ship appears to be in good condition. I can't think why the crew are acting as they are.

Overwrite.

Over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over, over and over. I can't even tell what time breakfast is supposed to be any longer! Well, at least I'll have my message log...

Overwrite.


Disclaimer: to the best of my knowledge, this is not what a white hole does. Now you know.

(idea) by hotthamir (1.6 d) Sun Feb 13 2005 at 21:40:15
White holes fit mathematically as being opposites of black holes. Just as black hole suck matter in, white holes spit matter out, both holes are connected by worm hole. Therefore it follows new theory suggesting big bang theory was caused by white hole. Additionally, it could help answer one of the most perplexing questions: Where did all that matter from the big bang come from? Currently, more observed evidence exists to the reality of black holes than the reality of white holes or worm holes.

Multiverse is a continuing popular debate among quantum physicists. Combined Multiverse make up the Universe. The birth of one Mutliverse through big bang (white hole) is the death of another Mutliverse by means of crunches (black holes). This model is imagined and makes sense mathematically but no concrete evidence exist to satisfy the skeptics.

Scheduled in 2008, NASA will launch LISA (Laser Interferometer Space Antenna). The primary mission of the triple satellite is to detect gravitational waves caused by black holes by means of lasers arranged as a triangle between the three satellites. In addition to its primary mission, LISA will search for gravitational waves from the early big bang. LISA uses complicated elimination techniques to filter out the Earth and Sun gravitational fields to detect gravitational waves caused by black holes swallowing massive stars and other smaller black holes.

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http://lisa.nasa.gov

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