Black holes could be home for aliens: Scientist

[unicorn]

1- Thats why you don't find any good scientist claming that they are 100% that life on other planets exist. Just because there is no proof doens't mean that there is a 50-50 probility. The chaces are the universe is filled with life. Drake's equiton even sugests that intelgent life might now be so rare.

2- What are you on about? existence of alien can be proven with science if they do exist.

I beleive that intelgent might be rare but the unvierse is probably filled with micro life. Though we don't have strong evidence. But keep in mind we haven't even deeply examined our solor system so how can we claim there is no life else where in the universe?. there may well be life underneth the surface of titan.

Hisenberg uncertainity principle is the fundamental inescapable truth.Shattered don't you think we need a new mathematical language to deal with singularity of a Black hole.

 

[Shattered]

Hisenberg uncertainity principle is the fundamental inescapable truth.Shattered don't you think we need a new mathematical language to deal with singularity of a Black hole.

But uncertainity principle has nothing to do with black holes =o.

 

[unicorn]

But uncertainity principle has nothing to do with black holes =o.

Yes it has. Quantum Mechanics is governed by uncertainity principle.The uncertainty principle had profound implications for the way in which we view the world.One certainly cannot predict future events exactly if one cannot even measure the present state of the universe precisely!.At the singularity both the quantum mechanics and the general theory of relativity collapse.I think we are at the point at which we cannot get out of the singularity problem without finding a new mathematical language because every time these two theories are combined infinity arises in our calculations.
Currently our wires are stick at the string theory but string theory requires eleven dimensions to be consistent.

 

[below_freezing]

But uncertainity principle has nothing to do with black holes =o.

Yes it does =)

A singularity by definition is a point mass in space with infinite density. Its actual size is subatomic. That means its position is totally defined. This would in Heisenberg's view, make the singularity's momentum totally undefined, so the black hole (simply defined as the region around the singularity within a distance which no light can escape) would just move randomly.

But of course that doesn't happen, black holes don't randomly move, they move according to Newton's laws.

Either black holes do not exist, they exist in a form we have no idea of, or quantum mechanics is BS.

 

[Vassnti]

But uncertainity principle has nothing to do with black holes =o.

Actually if you have a look at Hawkins work on decay of black holes it is relevent in certain cases.

Google Black holes have fuzz

 

[Mutee]

Oh I am so scared now

 

[Vassnti]

Yes it does =)

A singularity by definition is a point mass in space with infinite density. Its actual size is subatomic. That means its position is totally defined. This would in Heisenberg's view, make the singularity's momentum totally undefined, so the black hole (simply defined as the region around the singularity within a distance which no light can escape) would just move randomly.

But of course that doesn't happen, black holes don't randomly move, they move according to Newton's laws.

Either black holes do not exist, they exist in a form we have no idea of, or quantum mechanics is BS.

Physics quantum or not doesnt apply to a singularity,

Actually at the center of a black hole spacetime has infinite curvature and matter is crushed to infinite density under the pull of infinite gravity. At a singularity, space and time cease to exist as we know them. The laws of physics as we know them break down at a singularity, so it's not really possible to envision something with infinite density and zero volume. You might check out the web site for further information on black holes and singularities:

Black Hole Singularity

Maybe black holes do move randomly we just dont have a large enough time scale or sample to show the result, after all the knowledge of black holes is fairly recent, if black holes randomly move on a galatic scale say once every few million years we wont have seen one yet

 

[Raja.Pakistani]

Yes it does =)
Either black holes do not exist, they exist in a form we have no idea of, or quantum mechanics is BS.

The difficulty of detecting black holes is self evident. The problem is that by definition a black hole does not emit light and since most of our knowledge of the stars are by looking at their light new ways have to be discovered to examine black holes

Nearly all evidence of black holes is through indirect observation and there are a few ways to do this. The first of these is by watching the matter that is being drawn into a black hole. They form distinctive disk like structures. The second is similar to the way that Pluto was discovered. A black hole has an effect on stars around it and by watching their movements it is possible to determine that there are black holes nearby and even where they are likely to be.

Although black holes were once assumed to be rare if they existed at all it has become more clear that they do exist and may be reasonably common in the universe. In fact there are some scientists who believe that there may be super massive black holes in the center of many if not most of the galaxies of our universe and can account for much of the dark matter in the universe.

 

[Vassnti]

Explanation: At the center of our Milky Way Galaxy lies a black hole with over 2 million times the mass of the Sun. Once a controversial claim, this astounding conclusion is now virtually inescapable and based on observations of stars orbiting very near the galactic center. Using one of the Paranal Observatory's very large telescopes and a sophisticated infrared camera, astronomers patiently followed the orbit of a particular star, designated S2, as it came within about 17 light-hours of the center of the Milky Way (about 3 times the radius of Pluto's orbit). Their results convincingly show that S2 is moving under the influence of the enormous gravity of an unseen object that must be extremely compact -- a supermassive black hole. This deep near-infrared image shows the crowded inner 2 light-years of the Milky Way with the exact position of the galactic center indicated by arrows. The ability to track stars so close to the galactic center can accurately measure the black hole's mass and perhaps even provide an unprecedented test of Einstein's theory of gravity as astronomers watch a star orbit a supermassive black hole.

APOD: 2005 October 23 - At the Center of the Milky Way

Proof the unverse doesnt blow it sucks.

 

[Skull and Bones]

no a pulsar is just a fast rotating neutron star, theres no such thing as a white hole

Pulsars are netron stars. White holes is just a hypothsis where as pulsars do eixst.

My bad, i confused quasars with pulsars, though it doesn't relate to white holes. But they throw up huge quantity of energy which is quite opposite of black holes.

White holes are VERY hypothetical. They are, in fact, predicted as a possible "other end" of a black hole that has punctured a "worm hole" through space, but black holes are most likely just a point in space without an other side. The matter/energy coming out of white holes is supposedly the matter falling into a black hole. I have only seen them discussed in theoretical physics talks. At one point scientists speculated that quasars may be white holes, but now we are fairly certain that quasars are powered by supermassive black holes, in which case the light we see comes from matter as it falls into the black hole. After it falls in, we assume the matter just becomes part of the black hole and does not come out anywhere

When the concept of black hole came into existence in 1916, it was ridiculed and laughed away by many.

Why Don't We See White Holes in Space? : Discovery News

 

[Chinese-Dragon]

What about "Spaghettification"?

The tidal forces inside a black hole are pretty much a guarantee that you won't be very comfortable.

The article in the OP talks about supermassive black holes though, so the spaghettification won't be quite as bad, but still uncomfortable.

 

[Skull and Bones]

What about "Spaghettification"?

The tidal forces inside a black hole are pretty much a guarantee that you won't be very comfortable.

The article in the OP talks about supermassive black holes though, so the spaghettification won't be quite as bad, but still uncomfortable.

Uncomfortable??
U'll be ripped apart into constituent molecules, mate!

 

[aakash_2410]

Ok space be there we can see but can not feel.About time we can not see let alone feel it,it is not a natural existence,so scientist make some theories with the concept in it must be unthoroughly reliable.

Exactly. That's why Time and Space are not describable/undefinable.

 

[Chinese-Dragon]

Uncomfortable??
U'll be ripped apart into constituent molecules, mate!

LOL yeah probably.

In supermassive black holes though, the spaghettification process is a lot weaker (because you are so far from the singularity). So it is not necessarily lethal... as long as you are still a long way from the central singularity.

That said... I can't imagine why an alien civilization would voluntarily decide to go into a black hole.

 

[Skull and Bones]

LOL yeah probably.

In supermassive black holes though, the spaghettification process is a lot weaker (because you are so far from the singularity). So it is not necessarily lethal... as long as you are still a long way from the central singularity.

That said... I can't imagine why an alien civilization would voluntarily decide to go into a black hole.

Ok, one simple question.

How can you measure the flow time without looking into any clock, or sun?