Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > sci.physics.relativity > #375742

Re: Gravity needs NO Matter

From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups sci.physics.relativity
Subject Re: Gravity needs NO Matter
Date 2016-02-07 10:00 +0100
Organization PointedEars Software (PES)
Message-ID <4806127.WW7zg7LJvk@PointedEars.de> (permalink)
References (8 earlier) <c9092dfc-dd97-48f0-8930-820b80606d46@googlegroups.com> <2294866.0eUmRxfOXn@PointedEars.de> <5a083863-3552-48cf-8aa6-0ea069149c7f@googlegroups.com> <12655071.xHVoytKf2S@PointedEars.de> <n95oid$1hdk$1@gioia.aioe.org>

Show all headers | View raw


Éibhear wrote:

> Thomas 'PointedEars' Lahn wrote:
>> First of all, you mean a _gravitational_ wave; a gravity wave is
>> something else.
> 
> What exactly.

Follow the reference.

> Teach me learn.

I find it highly unlikely that you want to learn.  If you would want to 
learn, you would not change pseudonyms as other people change shirts, so 
that your previous ignorance and eventually your insults could *seemingly* 
not be associated with your new pseudonym (of course, by now many 
subscribers know how to recognize you anyway).

However, there are certainly other people reading this who want to learn, so 
I’ll bite.

>> Second, gravitational waves, if they exist, are
>> ripple-like disturbances in the gravitational field of a massive body.
> 
> You just said those are something else.

I did not.
 
>> The gravitational field of a massive body (and AFAWK, spacetime as well)
>> extends to infinity (where the gravitational potential approaches 0);
>> *nothing* can leave it.
> 
> Another error.

No.

> The story goes saying that 

It is not a story.

> at infinity the gravitational potential approaches maximum,

Correct.

> not 0.

Incorrect.  By convention, the gravitational potential is *negative* near 
the source (showing that gravity is an attracting force), and approaches 
zero (therefore, its maximum value) as the distance from the source 
approaches infinity.  (Probably someone has told you this before.  I 
remember to have posted in sci.physics the equation and diagram for 
gravitational potential already.)

<https://en.wikipedia.org/wiki/Gravitational_potential#Mathematical_form>

> Consequently that potential will be infinite as well.

Ex falso quodlibet.

> How do you like it?

It does not matter if I like your statement.  However, it does matter that 
your statement is wrong.


PointedEars
-- 
Q: What did the nuclear physicist order for lunch?  
A: Fission chips.

(from: WolframAlpha)

Back to sci.physics.relativity | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Gravity needs NO Matter Juan Sebastián <jseb@montserrat.info> - 2016-01-29 10:43 +0000
  Re: Gravity needs NO Matter Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 07:40 -0600
    Re: Gravity needs NO Matter Juan Sebastián <jseb@montserrat.info> - 2016-01-29 13:50 +0000
    Re: Gravity needs NO Matter benj <none@gmail.com> - 2016-01-29 12:22 -0500
      Re: Gravity needs NO Matter Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 11:28 -0600
        Re: Gravity needs NO Matter benj <none@gmail.com> - 2016-01-29 13:41 -0500
          Re: Gravity needs NO Matter Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 13:36 -0600
            Re: Gravity needs NO Matter benj <none@gmail.com> - 2016-01-30 02:30 -0500
          Re: Gravity needs NO Matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-01-30 14:07 +0100
            Re: Gravity needs NO Matter jamesl51165@gmail.com - 2016-01-30 09:32 -0800
              Re: Gravity needs NO Matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-01-30 20:19 +0100
                Re: Gravity needs NO Matter jamesl51165@gmail.com - 2016-01-30 15:37 -0800
                Re: Gravity needs NO Matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-01-31 18:15 +0100
                Re: Gravity needs NO Matter jamesl51165@gmail.com - 2016-02-06 10:23 -0800
                Re: Gravity needs NO Matter jamesl51165@gmail.com - 2016-02-06 11:14 -0800
                Re: Gravity needs NO Matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-02-06 22:24 +0100
                Re: Gravity needs NO Matter Éibhear <eibhear@no-email.net> - 2016-02-06 21:28 +0000
                Re: Gravity needs NO Matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-02-07 10:00 +0100
            Re: Gravity needs NO Matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-02-01 21:50 +0100
              Re: Gravity needs NO Matter shan <shan@enterapps.org> - 2016-02-05 21:43 +0000
  Re: Gravity needs NO Matter Sam Wormley <swormley1@gmail.com> - 2016-01-29 08:13 -0600
    Re: Gravity needs NO Matter Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-29 16:44 +0100
  Re: Gravity needs NO Matter jamesl51165@gmail.com - 2016-01-29 11:03 -0800
    Re: Gravity needs NO Matter Juan Sebastián <jseb@montserrat.info> - 2016-01-29 19:35 +0000
  Re: Gravity needs NO Matter jamesl51165@gmail.com - 2016-01-29 16:04 -0800

csiph-web