a little more about pulsars, please?

Question

http://www.nrao.edu/pr/2006/mspulsar/

this is one of the things that really boggle my tiny little brain.... how can something spin that fast and NOT fly apart...yeah, I know, a double the size of our sun star is now twenty miles across.. great gravity!.... but.... this didn't turn into a black hole... why?... not big enuff?.... but it 'accretes' like a black hole would, right?.... so, are black holes spinning that fast or faster?....is that why SOME black holes spit out energy at the 'poles'?.....

thanks, Spaceman... great links!.. but that wasn't a nice thing to do to me, really.... "..a teaspoon of a pulsar would weigh nearly two billion tons".... more boggle!!!!... *smile*!!!.....

Answer 1

This link is all about pulsars;
Just look around within the page and enjoy;)

http://search.jpl.nasa.gov:8080/cgi-bin/htsearch?words=pulsars

Answer 2

To put it simply i would say it is too big (in Size) to be a black hole. The black holes are supposed to be infinitely small because their core keeps on collapsing. So the star has to be at least 10 solar masses to be a black hole.
I don't think we know that black holes spin all we know is that the material around a black hole will spin faster and faster as it goes closer and closer to the black hole and emits more and more energy.
They spin that fast because the laws of angular momentum state that a shrinking body will spin faster and faster and who knows how much force is applied to a pulsar during a supernova.