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Black holes
Message
From
14/01/2008 11:08:12
 
 
To
13/01/2008 20:42:59
Neil Mc Donald
Cencom Systems P/L
The Sun, Australia
General information
Forum:
Space
Category:
Galaxies
Title:
Miscellaneous
Thread ID:
01281383
Message ID:
01281595
Views:
7
>Hi,
>
> If the big bang or big crunch formed the universe, what could be causing the universe to accelerate in its expansion, Newtonian physics states that this can't happen.
>
>Also at what point does the acceleration stop, when we reach C, or do we just go trans warp and disappear into another dimension.
>
>Also there is a great deal of energy being expended in this acceleration, where does it come from.
>
>>>>Recently there were two interesting pieces of news, in the BBC, on the subject of supermassive black holes. Note: Every major galaxy is expected to have a supermassive black hole (millions or billions of Sun masses) in its center; the larger the galaxy, the larger the black hole.
>>>>
>>>>1. The largest black hole discovered so far - 16 billion Sun masses, 6 times the previous record: http://news.bbc.co.uk/2/hi/science/nature/7181877.stm
>>>>
>>>>2. Supermassive black holes are expected to rotate extremely fast: http://news.bbc.co.uk/2/hi/science/nature/7184526.stm
>>>
>>>Eventually and in spite of the expansion of the universe, black holes will come together and crush themselves into a singularity. Then another big bang. Then, a billion or so years later, I could be typing this nonsense again :) . . . . or not.
>>>(Take that, Hawking!!)
>>
>>Please note that a billion years (American billion, or "short scale" billion - 1e9) is only a fraction of the current age of the Universe. From Wikipedia, article "Universe": "Based on experimental observations, the universe is 13.7±0.2 billion years old..."
>>
>>Also, it is now believed that the Universe expands at an ever-increasing rate. That is to say, strangely enough, the speed of expansion is increasing, not decreasing as was believed in the past.

Once again:
The interesting theory of black holes.

It seems as if every day scientists are uncovering more information about our universe
and in particular, black holes. Recently it was announced that one black hole is the
size of size of fifteen million suns. So why don't we take an imaginary journey into a black hole?
As we approach a black hole we will be drawn more and more quickly into it's grip by it's
overwealming gravitional force. Soon we notice that items around us and even our bodies
are beginning to be distorted. Shortly thereafter, even light is being absorbed by the
dark galactic monster. Hence the name black hole. Eventually we arrive at the absolute
center of this scientific curiosity. It is the blackest, lowest place we can begin to imagine.
It is so black that we think we might be blind, but fortunately we remembered to bring a
book of matches with us on our fantastic voyage. Let's have a look around. You strike a match.
At first we cannot see much, but our eyes adjust to the dim light and soon we begin to see
there are others nearby. We move a bit closer to see who else could possibly be with us
at the very lowest blackest place in the universe. It is virtually impossible to be at a lower point . . .
and standing there, in the glimmer of our fading match flame, we recognize the Seattle SeaHawks.
I ain't skeert of nuttin eh?
Yikes! What was that?
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