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Repulsive gravity???

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  • 13-08-2008 6:16pm
    #1
    Nutlog!!!
    Closed Accounts Posts: 59 ✭✭


    Was at an interesting lecture the other night given by Prof. Michael Rowan Robinson, in which he stated that Einstein's General Relativity allows for gravity to have repulsive properties at extremely large distance scales. I've been out of the loop for a while, so just wondering if anyone can clear this up for me a little more???


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    #2
    Kevster
    Closed Accounts Posts: 2,980 ✭✭✭Kevster


    That's strange... ...I wasn't aware that it could act at large distances. 'Repulsive Gravity' - for me - is the type of gravity that caused the Universe to undergo a period of intense inflation just after the Big Bang.


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    #3
    0utpost31
    Closed Accounts Posts: 469 ✭✭0utpost31


    Picturing the typical cannon ball on a mattress for a planet in space-time, it's hard to see how it's gravitational force can be repulsive at any point.... But you never know. Any google links for this theory?


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    #4
    Nutlog!!!
    Closed Accounts Posts: 59 ✭✭Nutlog!!!


    I found this, seems to equate repulsive gravity with 'dark energy'.

    http://www.faqs.org/docs/Newtonian/Newtonian_198.htm

    Not sure though, I must keep reading!!:D


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