Our server costs ~$56 per month to run. Please consider donating or becoming a Patron to help keep the site running. Help us gain new members by following us on Twitter and liking our page on Facebook!
Current time: July 24, 2025, 3:08 pm

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Is there something that is not affected by gravity?
#6
RE: Is there something that is not affected by gravity?
(May 6, 2013 at 12:54 pm)Luminox Wrote: In other words, is there something that is not affected by the gravitational force, no matter how strong the latter is?

None that we know.

This is not surprising because our only really successful model for modeling and predicting elementary makeup of the universe - known as the standard model of particle physics - does not give a description of how gravity fit into the scheme of interaction between different constituents of the universe. As a result we don't have any theoretical foundation to say where we should even look,of we were to try to find something that is totally uneffected by gravity.


(May 7, 2013 at 12:20 am)Polaris Wrote:
(May 7, 2013 at 12:15 am)Chuck Wrote: Wrong. Dark energy is thought to be effected only by gravity and none of the other elementary forces known to physics.

http://science.nasa.gov/astrophysics/foc...rk-energy/

http://www.universetoday.com/84934/antig...expansion/

http://www.dailygalaxy.com/my_weblog/201...time-.html


Did you even read any of these?

Dark energy menifest itself as a negative pressure intrinsic to space. By relativity Gravity interacts with pressure just as it interacts with any energy such as mass. It is only because of this that Einstein had anything to say about "cosmological constant" and why we can say that dark energy excert its effect as "negative gravity" and propels the acceleration in the expansion of the universe.

If it weren't for the fact dark energy interacts with gravity, we would have absolutely nothing to say about it.
Reply



Messages In This Thread
RE: Is there something that is not affected by gravity? - by Anomalocaris - May 7, 2013 at 12:30 am

Possibly Related Threads...
Thread Author Replies Views Last Post
  Earth's Gravity Hole Bucky Ball 2 1453 July 29, 2023 at 1:27 am
Last Post: Anomalocaris
  The real something for nothing Spongebob 51 8391 September 14, 2021 at 11:54 am
Last Post: Spongebob
  Professor Sean Carroll on Why there is Something... Jehanne 13 2099 August 25, 2018 at 8:49 pm
Last Post: Jehanne
  How Cn Gravity Affect Light When Light Has No Mass? Rhondazvous 18 3169 March 2, 2018 at 10:51 pm
Last Post: polymath257
  What Does Gravity Have To Do WithThe Expanding Universe? Rhondazvous 42 9439 February 26, 2018 at 8:14 am
Last Post: Edwardo Piet
  Defy Gravity! Haipule 43 8356 January 26, 2018 at 6:00 pm
Last Post: Anomalocaris
  If there's nothing in empty space, then how does it get warped by gravity? EruptedCarcassBloat 31 7866 October 13, 2016 at 2:06 pm
Last Post: Arkilogue
  Is there a real chance that there is a multiverse? SerenelyBlue 127 23952 September 15, 2016 at 1:59 pm
Last Post: Alex K
  Something that always had my curiosity: Fart propulsion abaris 5 2243 February 26, 2016 at 8:43 pm
Last Post: abaris
  How exactly does gravity affect time? ErGingerbreadMandude 17 3171 February 21, 2016 at 8:28 am
Last Post: Alex K



Users browsing this thread: 2 Guest(s)