Day 139: E = mc²

It's more of me talking, and my students asking lots of questions. They love it. I don't really know another way.

The goal was to talk about the different conservation laws for nuclear reactions: number of nucleons, charge, mass-energy.

But it opened up so many other questions, including anti-matter, black holes, and dark matter. I tried my best to answer. The conversations were rich and interesting and the questions were great, but I was the sage on the stage. 

I can't wait until they start reading about all these topics and start teaching me. I'll have to wait to the book project after the AP Exam.