Lecture 8

So in a fit of not working on a hum paper, I've worked ahead on the reading and the homework a bit. Lecture 8 is a pretty reasonable lecture, not too bad. I'd appreciate a review of how we know the thickness of the boundary layer in both cases - I especially didn't get where the last boundary layer number came from, I don't see how to get that. Overall, I'm happy with these last two lectures and the homework :)