The Concept of Energy

We're talking about energy and it's been a very energetic discussion here Daniel we talked about how you know humans when we start to try to understand the world. We came up with this idea of energy because it seems to be conserved in some circumstances but there's also potential energy which is kind of a weird concept in physics right I think that's where the name potential comes from. It doesn't really have energy right now it's just sitting on the table it doesn't really move but it has a potential to move along.