I remember how a book actually illustrated classical mechanics using a game of baseball as example. Actually, baseball stadium has been used to describe the relative scale of the nucleus to the 'shell' of an atom. Position, velocity, acceleration and jerk are all evident in the game...
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It would be enough for the depressing things in life to only exist in reality.
It is because that I think the birth of a story... is from people dreaming of a happy ending. ~Misaka Shiori
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