Posted on 08/22/2006 12:32:31 PM PDT by NonLinear
One of the brightest and furthest known objects in the universe might not be a black hole as traditionally believed, but rather an exotic new type of object, a new study suggests. (snip)
(Excerpt) Read more at world-science.net ...
the time-honored concept of the black hole?
I remember being staggered by the headlines
in the '60's when Astronomers officially
conferred the name Black Hole on these
cosmic entities. Prior to that, there were
a FEW astronomers who had theories about
them...but NO general agreement, let alone
time-honored concept. And the term BlacK
Hole had hardly even made it to the College
text books prior to Stanley Kubrick's @001:
A Space Odyssey.
http://flux.aps.org/meetings/YR04/APR04/baps/abs/S630.html
I can think of two black holes that exist....Henry Waxman's nostrils!!
We think we have answers to all but the last one...
CA....
Very good.
Surprising except when the MSM manages to put most of its energy into one trivial story or non-story such as the pencilneck mental case found in Thailand.
What's next? More wrestling? Perhaps "Who wants to be in charge of SciFi Channel programming?
How about remakes of Captain Planet, featuring Algor fending off a MECO?
I know, "Who wants to enter a MECO and try to get out?"
I am uncertain of my position...and my velocity.
As an aside, I do, however have a cat (who is not in a box with an isotope, but since I've not seen him all day, his state may be indeterminate, nonetheless).
The roaming gnome can't help?
What I'm trying to get a handle on is that they seem to be saying is that magnetism is stronger than
gravity in the article.
"but since I've not seen him all day, his state may be indeterminate, nonetheless"
I've always figured that a cat is quite capable of observing whether he is alive or not.
Bah. That is nothing
compared to what dogs can do.
Sheldrake studies dogs!
It is. About a brazillion times stronger, one of the cosmological mysteries. A quart jar of electrons would act on an electron 4000 miles away about the same strength as the gravity of the entire earth.
I saw this on some forum (maybe FR) a few years ago:
A friend suggests the following little pair of experiments for anybody wishing to better comprehend the present state of astronomical knowledge:
Get onto the Google search engine and type in "Astronomers surprised".
The resulting list goes on, and on, and on.................... and on. It's good for us to keep aware of how surprised they always are.
Then go into Google again and type "Astronomers confident" This will also produce a magnificently long listing of how absolutely confident they are about their knowledge. Strange how many times they are "surprised" and yet they maintain such absolute "confidence". I wonder what the surprise/confident ratio is. Both lists seem infinitely long....
You're not taking into account that as the mass of the black hole increases, the event horizon "moves outward" and overtakes the infalling matter. [Geek alert: the event horizon isn't actually a thing and it doesn't actually move. It just represents the distance at which you lose sight of stuff as it goes around the bend in the curved spacetime.] And because the Schwarzschild radius is proportional to the mass of the object (as opposed to the cube root of the mass, as is the case with the Earth), the radius grows much faster than you might think, so that the density of the black hole decreases as the square of the radius as the object grows.
Matter outside of the event horizon may be denser than the current black-hole density, so that a new event horizon will form outside of it. In the scenario you painted, with an influx of matter creeping, Achilles-like (from your point of view), towards the event horizon, this will eventually have to happen. The mass of the stuff piling up will bend the space around it. The tortoise will step backwards.
Of course. Time slows down inside a black hole (or a MECO).
Ask any HeeChee if you have any doubts.
Time for me to again demand of the powers that be that PI be officially defined as "a bit more than 3."
Mark
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