Quote (juliusjuice @ Wed, Apr 22 2009, 11:15am)
big fat f'ing fail. first off the fact that particles spin is a fairly new discovery. second, no no one knows how gravity works.
ill give you the basics of it. dark matter was dreamed up after discovery of the the rotation curve of a galaxy. -some unknown force was holding everything in place, there was not enough matter to keep the galaxy in tact by gravity as we know it. but recent experiments and phonomena (voyager craft) have suggested gravity reacts differently (stronger) at great distances and that newtonian physics does not apply outside of a solar system -or just needs to be tweaked. (newtonian physics works perfect inside our solar system). this also help explain how a supermassive black hole at the center of a galaxy can hold a star at its rim, some 50,000 light years away. this "tweaking" of universal gravitational theory would be very very slight, but over such amazingly large distances makes a collosal difference. this theory is called MOND modified newtonian dynamics.
next you will say "explain hubbles constant" (the distance between galaxies appears to be increasing at a rate of 70km per second over a distance of 3 million light years) -well, the possibility is that light itself is effected by stronger gravitational pull when it leaves a system -not that space is inflating at all. enough for now ill post link when i make thread.
no i dont necessarily believe this, it is very interesting. scources are 13 things that dont make sense-by michael brooks -great read and march 09 issue of astronomy monthly.
Yes, this I know... and No Hubbles constant, is no longer constant... but it does explain why, at any given time, we can only see 13.7 (or some such, was it 14 something?) billion lightyears out. the funny thing is, if we measure it, we can see further than there is time allowed, thus suggesting that there is a gravitational pull beyond what we can see, that is actually accelerating the photons of light traveling out.
Your right, it is all very odd, and very interesting. but this again, is still focusing on the idea that space is... rather linear.