We finished up Chapter 2 (including that nasty Chain Rule).  Barely started 3-4.

I will add captions as the weekend progresses.

8/21-23/13 (Chap 1)

We started and finished Chapter 1.   Nothing really new here. Set up time, length, and mass historically and current definitions.

We did talk a little about Fukushima in Japan.

Here are the screen shots: