April 2009
When you are learning for an exam (like I do in the moment), you have these moments when you can't make any sense of what you are reading. So you need to strain some other senses, best is to do something completely different to relax, but in the last time before the exam you (me at least ;)) don't even have the time to do something different, so you can relax by watching videos on the topic you are learning in the moment.
Here is what I found by a websearch. Not bad and I am sure you can find more by searching more deep.
The best videos I found are from Wolfgang Hürst.
