W Waldo Guest Feb 17, 2009 #1 I've checked wikipedia and everything, but I'm just looking for a more straightforward, one or two sentence explanation of each. Any help would be appreciated!
I've checked wikipedia and everything, but I'm just looking for a more straightforward, one or two sentence explanation of each. Any help would be appreciated!
D David D Guest Feb 17, 2009 #2 The differences are vast and need books to explain. They can't be summed up in one or two sentences.
