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Posted on 12/10/2015 8:44:24 PM PST by MtnClimber
Even gluttons can't eat forever. When black holes at the hearts of galaxies swell to 50 billion times the mass of our sun, they may lose the discs of gas they use as cosmic feedlots.
Most galaxies host a supermassive black hole at their centre. Around this is a region of space where gas settles into an orbiting disc. The gas can lose energy and fall inwards, feeding the black hole. But these discs are known to be unstable and prone to crumbling into stars.
Theoretically, a black hole could grow so big that it swallows up the stable part of the disc and destroys it. However, most people thought that black holes would not actually achieve that. "It didn't occur to us to worry about it, because the mass required was so large," says Andrew King of the University of Leicester, UK.
But there were observational hints that such a limit should exist. In 2008, an independent group led by Priya Natarajan of Yale University and Ezequiel Treister of the University of Concepcion in Chile considered how much black holes feasted in the early universe and the free gas available for them to swallow in recent times.
Given how much black holes have eaten since the dawn of the universe, they argued, the greediest ones could have grown to a size of about 50 billion solar masses.
(Excerpt) Read more at newscientist.com ...
Of mathematics being misused by scientists.
I am a bit surprised you asked for this as some examples are obvious. As an example, the most obvious, how about the statistical/logic computer models used to predict global warming. As you may or may not know, computer climate models are mostly mathematical in nature and while the mathematical calculations may be correct the data used in the mathematics is willfully incorrect providing incorrect output. There by mathematics is being misused by “scientists.”
Theoretically, a black hole could grow so big that it swallows up the stable part of the disc and destroys it.
Then what? Anthropomorphic Black Hole Cooling?
Did we do that?
I appreciate you pointing this out. I was thinking more along the lines of peer review, which is viciously attacked with regard to “climate change” by climatologists, which in my understanding of physics and mathematics are even less accurate prognosticators than witch doctors.
Thanks for helping to keep me honest.
The laws of physics determine the ballistic trajectory of the bullets fired by your gun.
Relativity predicts them, observation confirms them.
Its a zoning thing.
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