Originally Posted by **kiwiheretic** 1. If all mass was at some point crammed into space the diameter of an atomic nucleus why then did not the short range nuclear force rule? What over powered the nuclear force to disperse all the matter? I mean surely it couldn't have been the comparatively weaker electromagnetic force. |

You're not taking into account that the universe was far too hot for neutrons to bind together, even when the strong force was acting to keep them together. I.e. simply put, the kinetic energy of the neutrons was far too great to let them bind together.

Originally Posted by **kiwiheretic** 2. Why would the big bang produce rotating galaxies? Where did the angular momentum come from and why didn't it produce similar amounts of clockwise and anti clockwise angular momentum in roughly normally distributed fashion? |

I don't see any reason to assume that there shouldn't be rotating galaxies. Everything was moving about randomly at that time. When the temperature decrease enough for the gravitational force to bring matter together then just by shear numbers there had to be a great deal of matter in which the total didn't have a total angular momentum adding to zero. Consider how it'd work. Two large pieces of matter (e.g. asteroids) were being drawn together by the mutual gravitational force. It'd be statistically unlikely for them to be moving together along the exact same axis. That means that if, for instance, one asteroid was initially at

**r** = (x, y, z) = (0, 0, 0) =

**0** and whose initial velocity was along the x-axis then the other one would be initially located at

**r** = (100, 0, 0) and whose initially moving along the x-axis but in the opposite direction as the first one was moving. So although the mutual force as along a mutual axis and will start accelerating towards each other the system had a non-zero angular momentum. Combine this with all the matter in the universe and all moving randomly then it follows that almost all galaxies had to have some angular momentum which implies that they have to be rotating.