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Re: Without Einstein it would have taken decades longer to understand gravity

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Sam Wormley wrote:
> 
> Without Einstein it would have taken decades longer to understand gravity
> > http://phys.org/news/2015-11-einstein-decades-longer-gravity.html
> 
> > To describe curved space-time, Einstein called upon the earlier work
> > of Bernhard Riemann, a 19th century mathematician. And with the help
> > of his friend Marcel Grossman, also a mathematician, Einstein spent
> > several exhausting years learning the mathematics of curved spaces,
> > or what mathematicians call "differential geometry". As Einstein
> > commented, "compared with understanding gravity, special relativity
> > was mere child's play".
> >
> > Now Einstein had the mathematical tools to finalise his theory. His
> > equivalence principle stated that an accelerating reference frame is
> > equivalent to a gravitational field. From his geometrical studies, he
> > believed the gravitational field was simply a manifestation of curved
> > space-time. Hence, Einstein could show that accelerating frames were
> > represented by non-Euclidean space.
> >
> 
> --
> 
> sci.physics is an unmoderated newsgroup dedicated
> to the discussion of physics, news from the physics
> community, and physics-related social issues.


Gravity is 'just a theory'....there is no proof or fact that there such
a thing as ...Gravity.

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Without Einstein it would have taken decades longer to understand gravity Sam Wormley <swormley1@gmail.com> - 2015-11-23 07:55 -0600
  Without Einstein it would have taken decades longer to understand gravity john <johnsefton288@gmail.com> - 2015-11-23 07:37 -0800
    Without Einstein it would have taken decades longer to understand gravity HVAC <mr.hvac@gmail.com> - 2015-11-23 09:04 -0800
      Re: Without Einstein it would have taken decades longer to understand gravity benj <none@gmail.com> - 2015-11-23 13:11 -0500
      Re: Without Einstein it would have taken decades longer to understand gravity "Y.Porat" <y.y.porat@gmail.com> - 2015-11-24 03:31 -0800
        Re: Without Einstein it would have taken decades longer to understand gravity benj <none@gmail.com> - 2015-11-24 13:25 -0500
  Re: Without Einstein it would have taken decades longer to understand  gravity The Starmaker <starmaker@ix.netcom.com> - 2015-11-23 11:16 -0800
    Re: Without Einstein it would have taken decades longer to understand gravity Sam Wormley <swormley1@gmail.com> - 2015-11-23 14:04 -0600
      slow, medium & fast Alfven waves in free space noTthaTguY <abu.kuanysh05@gmail.com> - 2015-11-23 17:43 -0800
      Re: Without Einstein it would have taken decades longer to understand  gravity The Starmaker <starmaker@ix.netcom.com> - 2015-11-23 23:28 -0800
      Re: Without Einstein it would have taken decades longer to understand gravity jimp@specsol.spam.sux.com - 2015-11-24 20:02 +0000
    Re: Without Einstein it would have taken decades longer to understand  gravity "Y.Porat" <y.y.porat@gmail.com> - 2015-11-24 03:33 -0800
      Re: Without Einstein it would have taken decades longer to understand  gravity benj <none@gmail.com> - 2015-11-24 13:26 -0500
  Re: Without Einstein it would have taken decades longer to understand gravity gilber34 <fafa@invalid.com> - 2015-11-24 17:33 -0600

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