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

Groups > sci.physics > #535159

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

Show all headers | View raw

Sam Wormley <swormley1@gmail.com> wrote:
> On 11/23/15 1:16 PM, The Starmaker wrote:
>> Gravity is 'just a theory'....there is no proof or fact that there such
>> a thing as ...Gravity.
> 
>   Is there some reason you can float without touching the ground?

Is there some reason you keep posting this over and over again,
ass hole?


> 
>   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.
> 
> 

-- 
Jim Pennino

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

Thread

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

csiph-web