Posted: Mar 19, 2012 5:41 pm
Rumraket wrote:Jehannum wrote:This point has probably been made already but I've got 5 minutes so:
If the whole universe is rotating how fast are those distant galaxies moving? Let's see ... a galaxy 13 billion light years away would describe a circle 6 x 10^13 km in one day. I think that works out to 6.944 x 10^8 km per second. Bearing in mind they're on a circular path so this involves acceleration, large g forces. The universe as a giant fucking centrifuge. Them aliens must sure be dizzy.
Can someone please calculate the needed gravitational pull(and therefore mass) of the earth to keep the entire rest of the universe locked in orbit at the requisite velocities and distances? I'm guessing we're talking Uber-hyper-supermassive blackhole on a fruitcake scale. Like 1050 solar masses? More?
It can't be done with gravity. You need something like "crystal spheres" to spin the stars around the Earth.
Then you end up with distant objects exceeding the speed of light. A galaxy 1 ly distant would have to orbit along a path of
2 * PI * 365 light days in one day, which is 2,293 C.