mamakosj Posted May 1, 2007 Share Posted May 1, 2007 I read an articly in the 28 April edition of New Scientist which sparked my interest. A particle physicist called Philip Mannheim put forward an interesting theory concerning the cosmological and gravitational constants. In essence, he seems to be suggesting that insted of trying to find an ever smaller cosmological constant (CC), it might be a better idea idea to use two different gravitational constants called Gnewton and Gcosmo. The former is used on small scales whilst the latter is derived from particle physics and is used on large, cosmological scales. Click here for the link: Particle physicist takes on Newton and Einstein A better and more detailed description of the theory is in the article above (click the link above). Please post your ideas about his theory for I would like to know other peoples views. This will hopefully provide different perspectives on this topic and make it easier for me and whoever else reads this thread to understand. PLEASE READ THE ARTICLE BEFORE BEING TOO CYNICAL ABOUT THIS. (my description is only very brief) Link to comment Share on other sites More sharing options...
Dak Posted May 1, 2007 Share Posted May 1, 2007 please don't post up username/passwords to subscription-only online places, as its probably illegal. also, they'd probably have noticed the massive amounts of different IPs accessing the site at once, and cancelled your subscription. If i'm mistaken and you're allowed to share your logon details, just tell me and i'll undelete the post. Link to comment Share on other sites More sharing options...
mamakosj Posted May 1, 2007 Author Share Posted May 1, 2007 sorry... you're probably right. do you think that i could post the whole article? Link to comment Share on other sites More sharing options...
Phi for All Posted May 2, 2007 Share Posted May 2, 2007 sorry... you're probably right. do you think that i could post the whole article?Probably not. Is there a disclaimer requesting something like, "you may not reproduce or store in or transmit to any other web site, newsgroup, mailing list, etc.? Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted May 2, 2007 Share Posted May 2, 2007 Feel free to post properly cited excerpts. Link to comment Share on other sites More sharing options...
ajb Posted May 2, 2007 Share Posted May 2, 2007 I think it was Dirac who first worked on the idea of a varying gravitational constant. I am not familiar with this work, but I think it would have been in the context of general relativity and cosmology as opposed to modified Newtonian gravity. All I can find is Consequences Of Varying G. (Talk) and The Variation Of G And The Quantum Theory. (Talk) on SPIRES. Link to comment Share on other sites More sharing options...
mamakosj Posted May 2, 2007 Author Share Posted May 2, 2007 Thanks for that... It seems that I cannot get to the qhole articel any more for some random reason... sorry. Aside from that, is there anyone out there who has a good background knowledge of these developments and can shed some more light on the details and main concepts? Link to comment Share on other sites More sharing options...
alan2here Posted May 5, 2007 Share Posted May 5, 2007 Why not make it "Constant \ Size" or Simmerlar? Link to comment Share on other sites More sharing options...
mamakosj Posted May 12, 2007 Author Share Posted May 12, 2007 ??? explain... Link to comment Share on other sites More sharing options...
alan2here Posted May 12, 2007 Share Posted May 12, 2007 Well if the strength of graverty changes with size then surly there should be a simple equation to decide the gravertational constant at a given scale. As opposed to one for "big" things and one for "small" things. Link to comment Share on other sites More sharing options...
mamakosj Posted May 13, 2007 Author Share Posted May 13, 2007 correct me if i'm wrong, but i don't think there is a continous connection between the two constants. (for instant, i think that slightly different laws govern electrons that planets) Link to comment Share on other sites More sharing options...
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