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Science (non-SETI) :
Black Holes part 2
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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
Strange... Strange, Pulsating Star Found A strange, pulsing star has revealed a powerful magnetic field around the giant black hole at the heart of Earth’s Milky Way galaxy, scientists say. The finding may help shed light on how the galaxy's supermassive black hole devours matter around it and spits out powerful jets of superhot matter, the researchers added. __________ The universe wastes nothing, it's simply transferred. Lynn |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
Every galaxy has one. Earth has a super massive one. http://www.nasa.gov/mission_pages/chandra/multimedia/black-hole-SagittariusA.html#.Uh-7-3-ZvSc Supermassive Black Hole Sagittarius A* The center of the Milky Way galaxy, with the supermassive black hole Sagittarius A* (Sgr A*), located in the middle, is revealed in these images. As described in our press release, astronomers have used NASA’s Chandra X-ray Observatory to take a major step in understanding why material around Sgr A* is extraordinarily faint in X-rays. |
Intelligent Design Send message Joined: 9 Apr 12 Posts: 3626 Credit: 37,520 RAC: 0 |
I believe in Karl Schwarzschild radii. Funny thing about this subject is that the math is taken on faith. Now don't get all worked about this people. Take a deep breath... The math in my opinion is correct. The story that is around the math is sound logic. But you believe, as I do in something you cannot see and you believe this because of logic and a faith. Your belief system is no different than mine. Must not conflict resolve by suggesting that someone should go sit on an ice pick... |
W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
Black holes are not a matter of faith. They are predicted by Einsteins theory of general relativity. Although long before that it was discussed that light would not be able to escape objects with large gravity fields, if I remember correctly Laplace was involved but I cannot remember the other person. I remember Laplace was involved because I have had reason to look at Laplace and his transforms along with Fourier transforms. |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
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Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
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Intelligent Design Send message Joined: 9 Apr 12 Posts: 3626 Credit: 37,520 RAC: 0 |
i still only see a big-giant-mega sun there It isn't visible at all. It is deduced by what goes on around it. Yes? ;-) Must not conflict resolve by suggesting that someone should go sit on an ice pick... |
OzzFan Send message Joined: 9 Apr 02 Posts: 15691 Credit: 84,761,841 RAC: 28 |
i still only see a big-giant-mega sun there It is visible using different spectrums outside what the human eye can see - so Julie was accurate in her statement. |
Intelligent Design Send message Joined: 9 Apr 12 Posts: 3626 Credit: 37,520 RAC: 0 |
It is not. The singularity/blackhole is not. What you see is going on just outside of event horizon. This is a true and accurate statement. Must not conflict resolve by suggesting that someone should go sit on an ice pick... |
OzzFan Send message Joined: 9 Apr 02 Posts: 15691 Credit: 84,761,841 RAC: 28 |
It is not. The singularity/blackhole is not. What you see is going on just outside of event horizon. This is a true and accurate statement. But you can clearly see the object within the activity just outside of the event horizon. It is literally a "black hole". |
(banished: ID 9878057) Send message Joined: 19 May 13 Posts: 156 Credit: 527,760 RAC: 0 |
Hawking Radiation should be detectable in time. If a "Black Hole" can evaporate then it's not completely cut off from the rest of the universe. It's true that i can't do the mathematical derivation of a Schwarzschild Radius or Hawking Radiation from first principles but years of crossing bridges, going up in elevators, flying in planes tells me that science and mathematics are a good place to put your faith. The same can not be said for Astrology, Ouija boards, Religions/Scientology and other science wannabes. |
Intelligent Design Send message Joined: 9 Apr 12 Posts: 3626 Credit: 37,520 RAC: 0 |
It is not. The singularity/blackhole is not. What you see is going on just outside of event horizon. This is a true and accurate statement. The singularity/blackhole is smaller then an atom. You do not see the singularity/blackhole. You do not even see the event horizon. What you see is what is going on just outside of the event horizon, this is just a fact. Thank you for your time in this matter... Must not conflict resolve by suggesting that someone should go sit on an ice pick... |
W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
The singularity/blackhole is smaller then an atom. Where did you get idea? |
OzzFan Send message Joined: 9 Apr 02 Posts: 15691 Credit: 84,761,841 RAC: 28 |
It is not. The singularity/blackhole is not. What you see is going on just outside of event horizon. This is a true and accurate statement. I believe you're splitting hairs here. We can see the accretion disk around the event horizon which contains a black hole at it's center by using tools that help us see things outside the human spectrum. Ergo, for all intents and purposes, we can see black holes. |
Intelligent Design Send message Joined: 9 Apr 12 Posts: 3626 Credit: 37,520 RAC: 0 |
The singularity/blackhole is smaller then an atom. When I teach; I like to be as correct as possible. To do other wise is a disservice to the person and a lie by me even if unintentional. So when I speak I bother to do some research. I am human and from time to time I am very wrong. But not today. Must not conflict resolve by suggesting that someone should go sit on an ice pick... |
musicplayer Send message Joined: 17 May 10 Posts: 2430 Credit: 926,046 RAC: 0 |
So you are just thinking? As usual it is assumed that science is best obtained by means of facts based on observation. Still, we are hypothesizing about different things and in many cases this way of doing things also shows out to be true. One example: During a total eclipse of the sun in 1919 the position of the other star close to the disc of the sun showed up in a slightly different position than else, which proved one of Einstein's theories that gravity bends light. Therefore the human brain is the winner even though we may also get it wrong at times as well. |
W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
So you base your knowledge on non-rotating Black Holes. But can there ever be a non-rotating Black Hole? All Black Holes start as stars. All stars spin. Therefore Black Holes will have spin. And like ice skaters, as a spinning object gets smaller it spins faster. So do we know what the size of the object at the centre of a Black Hole actually is? |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30608 Credit: 53,134,872 RAC: 32 |
So do we know what the size of the object at the centre of a Black Hole actually is? At what time and in what time frame? |
(banished: ID 9878057) Send message Joined: 19 May 13 Posts: 156 Credit: 527,760 RAC: 0 |
The singularity/blackhole is smaller then an atom. Someone seems to be conflating the concepts of a "black hole" and a "singularity". Me thinks he understands nothing. |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
Black holes of stellar mass are expected to form when very massive stars collapse at the end of their life cycle. After a black hole has formed it can continue to grow by absorbing mass from its surroundings. http://en.wikipedia.org/wiki/Black_hole |
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