Guest author, Thomas Kennedy, features a twice-monthly series, Quantum Leap, wherein he guides readers through the fascinating world of quantum mechanics. This is issue 007.
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Black holes have provided “simple” answers to, for example, the questions of angular momentum for galaxy formation. Why is it that galaxies don’t fly apart, given the energy and resulting motions that are readily evident? Well, the theory goes, if you have a sufficiently strong gravitational force at the center of a galaxy, that provides the stickiness needed to keep galactic material from devolving into chaos.
