Sorry.As with most things in maths, it starts off nice and simple then gets horribly complicated.
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my other username is a porsche , posting shit pictures so you don't have to,
Sun 16 Nov 2008, 20:43,
archived)
Oh noes D:
xihpete A neutrino walks straight through a bar, with v>c.,
Sun 16 Nov 2008, 20:51,
archived)