Lets bring this blog up to date (I can take a hint). I am now at the half way point in the OU third year unit called "The Relativistic Universe", I have to pass this as a prerequisit for the PhD.

So far I have covered Special and General Relativity, Black Holes and Accretion discs (around stars), I am about go on the SMBHs and GRBs. This so far has been stretching me, but I don't mind. There are some bits of maths I haven't touched for a long time, matracies - I did these a little in my first year at university, but not since (used more in the last 4 months than I have ever done). Vectors - again not touched since my first year at university - but not as important or as rusty. Calculus - I have done a little (integration) over the last 20 years but not a lot again its rusty.