Elizabeth and Amy

I'm adding stripped-down Powerpoint presentations of the in-class lectures. Some features have changed, for example, I've added links to text of Churchill's "Iron Curtain' speech instead of audio clip, and a link to a web site that features video of atomic blasts instead of video clips. While not exactly what the rest of the class saw, they're close enough for our purposes.

I'll be adding more over the week end.