In reply to cb294:
> Numberphile are great. If I have a bit more time (waiting at airports, etc.) I tend to listen to actual lectures on subjects I can just about follow. Also useful for general time wasting! A recent one that I had to listen to a couple of times is on general relativity:
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> CB
I'll have a look shortly. They've really rekindled my love of maths, and I've begun to start seriously pondering a subject I've always been interested in (the uncharted swamp that has chaos theory, fluid flow, self-replicating automata present).