Comments on: It’s Just That Simple https://briankoberlein.com/2015/04/24/its-just-that-simple/ Brian Koberlein Thu, 21 Feb 2019 15:22:39 +0000 hourly 1 https://wordpress.org/?v=5.0.3 By: Carla René https://briankoberlein.com/2015/04/24/its-just-that-simple/#comment-2266 Fri, 24 Apr 2015 18:01:18 +0000 https://briankoberlein.com/?p=4732#comment-2266 It’s my understanding that the No-hair Theorem describes only the physical properties of the black hole, reducing them down to just 3 fundamental ones. Entropy, I think of as describing behaviour, which could be thought of as a side-effect of those properties.

]]> By: Carla René https://briankoberlein.com/2015/04/24/its-just-that-simple/#comment-2265 Fri, 24 Apr 2015 17:59:15 +0000 https://briankoberlein.com/?p=4732#comment-2265 The accretion disk of a black hole rotates. That much direct evidence we have, since as material gets closer to the hole, its rotation draws the material in, resulting in the spin. We’ve directly measured the spin rates of some black holes, showing this rotation.

]]> By: Aleksei Klimkin https://briankoberlein.com/2015/04/24/its-just-that-simple/#comment-2264 Fri, 24 Apr 2015 13:46:12 +0000 https://briankoberlein.com/?p=4732#comment-2264 Thanks for the interesting article.

I’m curious about the relation of the no-hair theorem to the supposedly existing entropy of black holes.
Does entropy become the fourth parameter which is needed to describe a black hole in this case?

Thanks in advance,
Aleksei

]]> By: richk https://briankoberlein.com/2015/04/24/its-just-that-simple/#comment-2263 Fri, 24 Apr 2015 13:42:14 +0000 https://briankoberlein.com/?p=4732#comment-2263 what exactly is supposed to be rotating?

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