It’s Earth Day, I figured I should talk about Earth stuff. How about, sustainable energy.
A few weeks ago, I was teaching one of my science classes about energy. The focus was on kinetic and potential energy because it meant that the kids got an excuse to launch pingpong balls around the room with elastic band-powered catapults. But while I was giving the pre-activity talk I mentioned solar energy and solar panels. One of the kids asked, with understandable frustration, why people don’t more people use solar power. The sun’s right there, all the time. Continue Reading