If light isn't made of matter and therefore has no mass, and gravity is (though I wouldn't bet that I memorized it correctly...) F=(G*m1*m2)/r^2, then how is light affected/bent by gravity and trapped in black holes? If m1 = 0, then everything equals zero, so there should be no force...but it doesn't work that way. Please Register or Log in to view the hidden image! I'd like to know what I'm missing, thanks.
Well, you'd also have to realize that light travels along the curvature of space-time. The curve around a black hole is very steep, therefore any light traveling towards a black hole will fall in.
That equation only works for finding the force of gravity between two objects with mass. Particles don't have to have mass to be effected by gravity.
There is less space-time each second near a massive object such as a black hole. Light bends because the space-time it travels through disappears.
Hum, <i>Disappears</i>, as in contracts/shrinks or <i>disappears</i>, as in, it gets transformed into something else like , say, <i>time</i> or <i>gravity/gravitons</i>?
i feel a monty python moment coming on… I just mentioned it because I know a old theory that postulates that at the time of super symmetry breaking (during the big bang) that another `shadow` universe was created (<i>it’s the break-up of the <b>E8 x E8'</b> lie group configuration</i>). <font color=grey>< It's expired and gone to meet its maker></font> This shadow universe would be totally <i>invisible</i> to our universe except for a gravitational signature i.e. gravitons/spacetrons would be able to cross between our universe and this other unseen universe. And just like the other force carrying bosons it would mediate between masses…and give each the property of `gravity`… It would still obey the inverse square law, but operate `outside` of our space-time… It would give space geometry… This shadow universe of course would also contain the <b>SU(3)'</b>, <b>SU(2)'</b> and <b>U(1)'</b> symmetry groups associated with the strong, weak and electromagnetic interactions – however they may manifest themselves in that universe totally differently to what their counterparts are like in our universe. Resulting in `matter` with very different properties… It has been suggested that, they may be very weak and that gravity is the strongest force, and maybe the reason why gravity is weak in our universe… <font color=grey>< /It's expired and gone to meet its maker></font> The funny thing is that they may find the proposed 2 spin higgs boson quite soon - - and finding/ or not finding that will cause a lot of theories to go extinct.... <img src="http://img.photobucket.com/albums/v328/blobrana/smil402e47bccd161.gif">
The answer to my question is pretty obvious once you know it I guess, but I thought about it a long time before I asked ... You make me feel stupid =P Anyway, thanks a lot for clearing that up.
