Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity.

From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups	sci.physics
Subject	Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity.
Followup-To	sci.physics.relativity
Date	2017-08-25 16:14 +0200
Organization	PointedEars Software (PES)
Message-ID	<40646853.fMDQidcC6G@PointedEars.de> (permalink)
References	(6 earlier) <Jeff-Relf.Me@Aug.23--2.58pm.Seattle.2017> <onl1h0$pm7$1@pcls7.std.com> <onm5e7$s7h$1@gioia.aioe.org> <1698582.taCxCBeP46@PointedEars.de> <b7555473-7eaa-467f-ac45-7cb619a90d4d@googlegroups.com>

Followups directed to: sci.physics.relativity

Show all headers | View raw

John Doe wrote:

> Pointed Ears

Without the space, please.

> Why would you talk about non-rotating Black Holes?

Because a non-rotating, uncharged black hole (BH) is the simplest case for 
which the Schwarzschild radius can be easily calculated in one or two lines.  
If you want to calculate the Schwarzschild radius (or rather, the semi-minor 
axis of the volume) of a rotating black hole, please go ahead.  I have given 
you all the hints.

> Have you seen one?

No.  Why do you ask?

> How do you think BHs work?

As always in general relativity, the curvature of spacetime in an around a 
BH, too, corresponds to its mass–energy–momentum, too.  There is a distance 
from a body or point of mass–energy–momentum where the curvature of 
spacetime becomes so great that all geodesics lead only further inside the 
black hole, towards the same area or point (*that* is the [spacetime] 
singularity).

In terms of gravity, there is a radius for every body, the Schwarzschild 
radius, which is proportional to the body’s mass (among other factors), 
below which the escape velocity from that body would have to be greater than 
the speed of light.  As the speed of light is the speed limit for 
information in our universe, no information beyond that distance from the 
center of mass of the body can reach the outside observer if it lies outside 
of the body.

> Just by "being there"

Yes, that is sufficient.

> (and presumably sending some kind of 'Gravity message'?

No, gravity is just an observable effect of the curvature of spacetime.  The 
apparent gravitational attraction between massive bodies is a projection 
into three-dimensional space of their motion along curved spacetime 
geodesics.

> You guys are SO confused!!

No, you are.  To begin with, you are posting to sci.physics in a follow-up 
to a posting which had “Followup-To: sci.astro” set (but, granted, 
accidentally not announced).

> http://news.nationalgeographic.com/news/2013/03/130301-black-hole-speed-of-light-einstein-science-astronomy-space/

So there is an example of a rotating black hole.  That does not exclude the 
possibility of a non-rotating one.

> Black Holes work by RAPID ROTATION.

Nonsense.  Black holes are _not_ maelstroms in space.  (They just create the 
appearance of that because matter is spiraling in.)

Black holes can rotate, and I think (for reasons that I have given recently 
in <news:sci.astro>) that most of them do rotate.  But they do not have to 
do that in order to “work”.

I strongly suggest that you read, among other sources, 

<https://en.wikipedia.org/wiki/Black_hole> pp.

and

<http://jila.colorado.edu/~ajsh/insidebh/> pp.

F’up2 <news:sci.physics.relativity>

-- 
PointedEars

Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail.

Thread

For Sefton, on whether gravity is ever infinite or not. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-18 14:54 -0500
  Re: For Sefton, on whether gravity is ever infinite or not. Edward Prochak <edprochak@gmail.com> - 2017-08-18 13:01 -0700
    Re: Black Holes violate the Heisenberg Uncertainty Principle. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-08-18 20:26 -0500
      Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-18 23:07 -0700
        Re: Take your own advice, Tom Roberts. benj <nobody@gmail.com> - 2017-08-19 03:26 -0400
          Re: Take your own advice, Tom Roberts. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-21 06:05 -0700
          Re: Take your own advice, Tom Roberts. Serg io <invalid@invalid.com> - 2017-08-21 09:26 -0500
            Re: Take your own advice, Tom Roberts. Serg io <invalid@invalid.com> - 2017-08-21 09:34 -0500
        Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-21 08:18 -0500
          Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 06:53 -0700
            Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-21 15:50 -0500
              Re: Take your own advice, Tom Roberts. "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-21 14:50 -0700
                Re: Take your own advice, Tom Roberts. "hanson" <hanson@quick.net> - 2017-08-21 15:39 -0700
              Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 15:50 -0700
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 15:59 -0700
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-21 23:42 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 17:16 -0700
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 18:04 -0700
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-22 02:24 +0000
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-22 01:18 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 19:09 -0700
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-22 02:39 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 20:00 -0700
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 20:40 -0700
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-21 20:49 -0700
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-22 13:49 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-22 14:58 -0700
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-22 23:35 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-22 17:06 -0700
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-23 00:43 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-22 18:03 -0700
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-23 01:34 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-22 19:32 -0700
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-22 19:50 -0700
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-23 09:02 -0500
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-23 13:20 -0700
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-23 16:38 -0500
                Re: Take your own advice, Tom Roberts. Edward Prochak <edprochak@gmail.com> - 2017-08-23 13:46 -0700
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-23 13:54 -0700
                Re: Take your own advice, Tom Roberts. Edward Prochak <edprochak@gmail.com> - 2017-08-23 14:38 -0700
                Thermodynamics, and its flipside ( gravity ), define everything. john <johnsefton288@gmail.com> - 2017-08-23 15:32 -0700
                Thermodynamics, and its flipside ( gravity ), define everything. john <johnsefton288@gmail.com> - 2017-08-23 15:54 -0700
                Re: Thermodynamics, and its flipside ( gravity ), define everything. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-24 10:24 -0500
                Re: Thermodynamics, and its flipside ( gravity ), define everything. john <johnsefton288@gmail.com> - 2017-08-24 09:10 -0700
                Re: Thermodynamics, and its flipside ( gravity ), define everything. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-24 17:09 +0000
                Re: Thermodynamics, and its flipside ( gravity ), define everything. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-24 12:14 -0500
                Re: Thermodynamics, and its flipside ( gravity ), define everything. john <johnsefton288@gmail.com> - 2017-08-24 11:41 -0700
                Re: Thermodynamics, and its flipside ( gravity ), define everything. john <johnsefton288@gmail.com> - 2017-08-24 15:05 -0700
                Re: Thermodynamics, and its flipside ( gravity ), define everything. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-24 22:10 +0000
                Re: Thermodynamics, and its flipside ( gravity ), define everything. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-24 22:07 +0000
                Re: Thermodynamics, and its flipside ( gravity ), define everything. Edward Prochak <edprochak@gmail.com> - 2017-08-25 08:31 -0700
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-23 16:39 -0500
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-22 13:47 +0000
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-22 13:53 +0000
                Re: Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-22 07:51 -0700
                Re: Take your own advice, Tom Roberts. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-22 15:35 +0000
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-22 08:25 -0500
                Re: Take your own advice, Tom Roberts. benj <benj@nobody.net> - 2017-08-22 17:58 -0400
                Re: Take your own advice, Tom Roberts. benj <nobody@gmail.com> - 2017-08-21 21:05 -0400
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-22 01:18 +0000
                Re: Take your own advice, Tom Roberts. benj <benj@nobody.net> - 2017-08-22 18:00 -0400
                Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-22 23:35 +0000
            Re: Take your own advice, Tom Roberts. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2017-08-23 02:34 -0700
              Re: Take your own advice, Tom Roberts. Edward Prochak <edprochak@gmail.com> - 2017-08-23 13:51 -0700
      Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-18 23:15 -0700
        Take your own advice, Tom Roberts. john <johnsefton288@gmail.com> - 2017-08-18 23:22 -0700
        Re: Take your own advice, Tom Roberts. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-19 11:16 +0000
          Odd Bodkin gets the Nobel prize, along with Bert. NobelPrize.ORG  @. - 2017-08-19 07:45 -0700
            Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-19 08:32 -0700
              Re: Odd Bodkin gets the Nobel prize, along with Bert. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-19 17:46 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. Serg io <invalid@invalid.com> - 2017-08-19 14:08 -0500
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-19 17:20 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-20 00:34 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-20 00:36 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-20 01:33 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. poraty350@gmail.com - 2017-08-19 21:04 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-20 10:07 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-20 10:57 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. "hanson" <hanson@quick.net> - 2017-08-20 11:17 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. "hanson" <hanson@quick.net> - 2017-08-20 11:19 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-20 11:00 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-20 18:29 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-20 18:26 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-20 11:58 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-21 16:39 +0000
                Black Holes are math kook babble john <johnsefton288@gmail.com> - 2017-08-21 11:46 -0700
                Re: Retarded precessing spinny things are kook babble moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-21 20:07 +0000
                Re: Odd Bodkin gets the Nobel prize, along with Bert. Lofty Goat <rlwatkins@gmail.com> - 2017-08-20 15:09 -0500
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-20 14:13 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. Serg io <invalid@invalid.com> - 2017-08-20 18:07 -0500
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-20 16:31 -0700
                Re: Odd Bodkin gets the Nobel prize, along with Bert. Serg io <invalid@invalid.com> - 2017-08-21 08:33 -0500
                Re: Odd Bodkin gets the Nobel prize, along with Bert. john <johnsefton288@gmail.com> - 2017-08-21 07:00 -0700
            Re: Odd Bodkin gets the Nobel prize, along with Bert. Chris Ahlstrom <OFeem1987@teleworm.us> - 2017-08-19 12:45 -0400
              Re: Odd Bodkin gets the Nobel prize, along with Bert. chrisv <chrisv@nospam.invalid> - 2017-08-21 07:04 -0500
      Re: Black Holes violate the Heisenberg Uncertainty Principle. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-08-21 18:00 -0500
        Re: More data, from more observers, is needed. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-08-23 10:41 -0500
          Re: We can't see Sgr A* PROPER, directly. "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-23 11:55 -0700
            Re: We can't see Sgr A* PROPER, directly. "hanson" <hanson@quick.net> - 2017-08-24 00:03 -0700
          Re: We can't see Sgr A* PROPER, directly. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-23 21:26 +0000
            Re: We can't see Sgr A* PROPER, directly. john <johnsefton288@gmail.com> - 2017-08-23 14:32 -0700
              Re: We can't see Sgr A* PROPER, directly. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-23 16:48 -0500
              Re: We can't see Sgr A* PROPER, directly. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-23 22:12 +0000
            Re: We can't see Sgr A* PROPER, directly. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-23 16:46 -0500
            Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-23 23:01 +0000
              Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-08-24 10:14 +0100
                Re: A TRUE singularity has infinite precision, not +/- 45 AU. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-24 17:04 +0000
                Re: There is no evidence that TRUE black holes exist, none. Double-A <double-a3@hush.com> - 2017-08-24 15:40 -0700
                Re: There is no evidence that TRUE black holes exist, none. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 20:04 +0200
                Re: Slowing lased photons to near ZERO meters/second. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 20:05 +0200
                Re: Starting/Stopping light. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 21:45 +0200
                Posting an email address to Usenet is just wrong. Jeff-Relf.Me  @. - 2017-08-25 17:55 -0700
                Re: Posting an email address to Usenet is just wrong. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-26 03:23 +0200
                Give it your best shot, Thomas Lahn. Jeff-Relf.Me  @. - 2017-08-25 19:08 -0700
                Re: Give it your best shot, ****** ****. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-26 14:15 +0200
                Thomas Lahn would ban URL's. Jeff-Relf.Me  @. - 2017-08-26 13:36 -0700
                Re: ****** **** would ban URL's. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-27 01:46 +0200
                Re: Thomas Lahn's GoogleGroups Spam Remover. Snit <usenet@gallopinginsanity.com> - 2017-08-28 15:55 -0700
                Google Groups spam filter (was: Thomas Lahn's GoogleGroups Spam Remover.) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-31 18:04 +0200
                If this Wikipedia article is wrong, please fix it. Jeff-Relf.Me  @. - 2017-08-25 18:39 -0700
                Slow light (was: If this Wikipedia article is wrong, please fix it.) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-26 03:55 +0200
                Viewed from earth, everything near an ideal event horizon appears frozen. Jeff-Relf.Me  @. - 2017-08-25 19:47 -0700
                Re: If this Wikipedia article is wrong, please fix it. benj <nobody@yahoo.com> - 2017-08-26 01:52 -0400
                Re: kNode hasn't heard of MIME/HTML ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-26 03:47 +0200
                The DEFAULT "Subject:" line is NEITHER mandatory or desirable. Jeff-Relf.Me  @. - 2017-08-25 19:29 -0700
                Re: The DEFAULT "Subject:" line is NEITHER mandatory or desirable. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-26 15:36 +0000
                Usenet isn't Wikipedia; threads branch and morph, topics change. Jeff-Relf.Me  @. - 2017-08-26 11:56 -0700
                Re: Usenet isn't Wikipedia; threads branch and morph, topics change. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-27 04:31 +0000
                Re: There is no evidence that TRUE black holes exist, none. The Starmaker <starmaker@ix.netcom.com> - 2017-08-25 12:28 -0700
                Re: There is no evidence that TRUE black holes exist, none. john <johnsefton288@gmail.com> - 2017-08-25 12:44 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 14:34 +0200
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. john <johnsefton288@gmail.com> - 2017-08-25 06:22 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 16:14 +0200
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. john <johnsefton288@gmail.com> - 2017-08-25 07:18 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. john <johnsefton288@gmail.com> - 2017-08-25 07:49 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 18:25 +0200
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Edward Prochak <edprochak@gmail.com> - 2017-08-25 10:44 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-25 13:05 -0500
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-25 16:09 +0000
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-25 15:37 +0000
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. john <johnsefton288@gmail.com> - 2017-08-25 08:51 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-25 13:01 -0500
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 19:22 +0200
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-25 18:48 +0000
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. john <johnsefton288@gmail.com> - 2017-08-25 12:22 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. john <johnsefton288@gmail.com> - 2017-08-25 12:25 -0700
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 21:27 +0200
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-25 21:54 +0000
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-26 03:01 +0200
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-26 03:31 +0000
                Re: Sgr* isn't even a "black hole", much less a PRECISELY known singularity. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-25 21:52 +0200
      Re: Take your own advice, Tom Roberts. Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2017-09-04 14:34 -0400
        Re: Take your own advice, Tom Roberts. Ethel Ocallaghan <unlgclo@awlwaac.ag> - 2017-09-05 11:40 +0000
        Re: "Black Holes" are forever a notion, never measured. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-09-05 14:04 +0000
    Re: For Sefton, on whether gravity is ever infinite or not. poraty350@gmail.com - 2017-08-19 00:00 -0700
      Re: For Sefton, on whether gravity is ever infinite or not. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-21 08:18 -0500
    Re: Black Holes violate the Heisenberg Uncertainty Principle. Double-A <double-a3@hush.com> - 2017-08-20 16:01 -0700
    Re: Black Holes violate the Heisenberg Uncertainty Principle. pcardinale@volcanomail.com - 2017-08-21 12:54 -0700
  For Sefton, on whether gravity is ever infinite or not. john <johnsefton288@gmail.com> - 2017-08-18 14:44 -0700
    Re: For Sefton, on whether gravity is ever infinite or not. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-18 22:15 +0000
  Re: For Sefton, on whether gravity is ever infinite or not. "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-18 15:26 -0700
    Re: For Sefton, on whether gravity is ever infinite or not. "hanson" <hanson@quick.net> - 2017-08-18 18:54 -0700
  Re: For Sefton, on whether gravity is ever infinite or not. Lofty Goat <rlwatkins@gmail.com> - 2017-08-18 21:06 -0500
  Re: For Sefton, on whether gravity is ever infinite or not. "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-25 10:25 -0700
    Re: For Sefton, on whether gravity is ever infinite or not. "hanson" <hanson@quick.net> - 2017-08-25 10:55 -0700
    Re: For Sefton, on whether gravity is ever infinite or not. Double-A <double-a3@hush.com> - 2017-08-25 14:17 -0700
      Re: For Sefton, on whether gravity is ever infinite or not. "hanson" <hanson@quick.net> - 2017-08-25 15:27 -0700
        Re: For Sefton, on whether gravity is ever infinite or not. Double-A <double-a3@hush.com> - 2017-08-25 15:37 -0700
          Re: For Sefton, on whether gravity is ever infinite or not. "hanson" <hanson@quick.net> - 2017-08-25 15:50 -0700
  For Sefton, on whether gravity is ever infinite or not. john <johnsefton288@gmail.com> - 2017-08-25 16:29 -0700
    For Sefton, on whether gravity is ever infinite or not. john <johnsefton288@gmail.com> - 2017-08-25 17:03 -0700
      Re: For Sefton, on whether gravity is ever infinite or not. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-26 01:53 +0000
    Re: For Sefton, on whether gravity is ever infinite or not. Odd Bodkin <bodkinodd@gmail.com> - 2017-08-26 01:53 +0000

csiph-web