I've been reading Einsteins Theory of Relativity and more in particular the principal of Equivalence and gravitational theory.
I can conceptualize the idea of dust and gas clumping together in a nebula. The more gas and dust the greater the gravitational effect the clump has on the area surrounding it, until the mass becomes so great that it causes fusion to begin.
What I am wondering is what causes the initial mass to begin spinning. Is it a 'whirl' in the gas that starts the initial clumping and it (excuse the pun) spins off from there, or a uneven distribution of the matter causes the in-falling matter to hit at an angle to the main mass?