Re: Black holes surprisingly cool

From	Sylvia Else <sylvia@email.invalid>
Newsgroups	sci.physics
Subject	Re: Black holes surprisingly cool
Date	2019-01-18 00:12 +1100
Message-ID	<gabd9aF2j8fU1@mid.individual.net> (permalink)
References	(2 earlier) <1c688ac9-2fe6-4caa-afd2-6a29d53a1f49@googlegroups.com> <gaa742Fp6qtU1@mid.individual.net> <313e024a-d063-4988-807a-deb37dc122b4@googlegroups.com> <gaaj0qFri50U1@mid.individual.net> <d57b049c-b160-4c76-acf7-efddf12dd18a@googlegroups.com>

Show all headers | View raw

On 17/01/2019 9:24 pm, john wrote:
> Sylvia
> “Where's your evidence that jets are coming from black holes, rather than
> from their vicinity?
> 
>> So you say it’s “splash” collimated by a magnetic field that is suddenly directed and powerful when a few years ago it was diffuse and spread out through the galaxy. (It is directed and powerful)
>> Heat coming away from the BH doesn’t fit either so you say it can’t be coming from the hole?
>    That’s 2 observations denied.
> 
> Where's your evidence that heat is coming from a black hole? ”
> 
> When it walks like a duck
> 

Black holes are a theoretical construct. The theory says that they don't 
radiate. An object that radiates cannot be a black hole. Calling it a 
black hole makes as much sense as calling a dry depression a puddle 
without water.

Faced with strong evidence that some object is a black hole, but with 
heat coming from its direction, the most likely explanation is that the 
heat is coming from something between us and the black hole.

As for the beams - the thing about them is that they look bright when 
they're pointed at you, and dim, or invisible, when they're not. So a 
beam can be of constant strength, but still appear to vary.

Sylvia.

Back to sci.physics | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-16 10:41 -0800
  Re: Black holes surprisingly cool Woe <woe_is_me@the_bar.room> - 2019-01-16 15:11 -0500
    Re: Black holes surprisingly cool Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2019-01-16 21:49 +0100
      Re: Black holes surprisingly cool "Chris M. Thomasson " <ahh_f_it@crap.nothing> - 2019-01-16 20:26 -0800
        Re: Black holes surprisingly cool Sergi o <invaliid@invalid.com> - 2019-01-17 14:43 -0600
          Re: Black holes surprisingly cool mitchrae3323@gmail.com - 2019-01-17 13:26 -0800
            Re: Black holes surprisingly cool "Chris M. Thomasson " <ahh_f_it@crap.nothing> - 2019-01-17 13:34 -0800
              Re: Black holes surprisingly cool mitchrae3323@gmail.com - 2019-01-17 15:27 -0800
                Re: Black holes surprisingly cool "Chris M. Thomasson" <ahh_f_it@crap.nothing> - 2019-01-17 16:49 -0800
              Re: Black holes surprisingly cool Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2019-01-18 15:08 +0100
                Re: Black holes surprisingly cool Sergi o <invaliid@invalid.com> - 2019-01-18 10:29 -0600
                Re: Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-18 09:31 -0800
    Re: Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-16 16:20 -0800
      Re: Black holes surprisingly cool "Sir Gregory Hall,  Esq." <greghall@yacht_maester.fake> - 2019-01-16 20:39 -0500
      Re: Black holes surprisingly cool moroney@world.std.spaamtrap.com (Michael Moroney) - 2019-01-17 19:37 +0000
  Re: Black holes surprisingly cool Sylvia Else <sylvia@email.invalid> - 2019-01-17 12:50 +1100
    Re: Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-16 18:12 -0800
      Re: Black holes surprisingly cool Sylvia Else <sylvia@email.invalid> - 2019-01-17 13:20 +1100
        Re: Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-16 20:13 -0800
          Re: Black holes surprisingly cool Sylvia Else <sylvia@email.invalid> - 2019-01-17 16:43 +1100
            Re: Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-17 02:24 -0800
              Re: Black holes surprisingly cool Sylvia Else <sylvia@email.invalid> - 2019-01-18 00:12 +1100
                Re: Black holes surprisingly cool "Sir Gregory Hall,  Esq." <greghall@yacht_maester.fake> - 2019-01-17 09:54 -0500
                Re: Black holes surprisingly cool john <johnsefton288@gmail.com> - 2019-01-17 07:03 -0800
                Re: Black holes surprisingly cool Sergi o <invaliid@invalid.com> - 2019-01-17 09:48 -0600
                Re: Black holes surprisingly cool moroney@world.std.spaamtrap.com (Michael Moroney) - 2019-01-17 19:54 +0000
                Re: Black holes surprisingly cool Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2019-01-18 15:28 +0100
                Re: Black holes surprisingly cool Sergi o <invaliid@invalid.com> - 2019-01-17 09:08 -0600
              Re: Black holes surprisingly cool moroney@world.std.spaamtrap.com (Michael Moroney) - 2019-01-17 19:46 +0000
          Re: Black holes surprisingly cool Odd Bodkin <bodkinodd@gmail.com> - 2019-01-17 16:24 +0000
        Re: Black holes surprisingly cool Mahipal <mahipal7638@gmail.com> - 2019-01-17 16:38 -0800
    Re: Black holes surprisingly cool "reber G=emc^2" <herbertglazier0@gmail.com> - 2019-01-17 09:47 -0800
    Re: Black holes surprisingly cool "reber G=emc^2" <herbertglazier0@gmail.com> - 2019-01-18 10:22 -0800
  Re: Black holes surprisingly cool mitchrae3323@gmail.com - 2019-01-17 15:55 -0800
  Re: Black holes surprisingly cool "reber G=emc^2" <herbertglazier0@gmail.com> - 2019-01-18 10:11 -0800

csiph-web