Quick answer without verifying it I am guessing a bushing is cylindrical in shape, in contrast to a bearing that is spherical in shape but don't quote me on that shape has little or nothing to do with it, though some bearings are shaped completely unlike bushings. But most bushings are shaped like some bearings listen: a bush doesn't move and a bear does that's a good way to remember the diff.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.