Oh, that's scary, Fox of Crate, mate. And today I'm going to talk a little bit about energy, but a little different way of thinking about energy. Think about energy, energy storage in short terms. So we're going to talk about rubber bands, storing the energy that I just put into it when I stretched it. And now that I got turned loose, I don't think I want to do it quickly. And we're going to talk about the energy and hammers. The word we're really at it is talking about some electrical components called a capacitor and then a doctor. But while we're at it, we'll talk about some thermal storage. And it turns out that they're all kind of very, very, very similar. There's a term electrical called power factor. Well, you and I are experiencing power factor in a different situation right now. We're heading toward the shortest day of the year here in North America. But the coldest day of the year will come about 20 days after the shortest day of the year. So there's a time lag here. That time lag is an interesting little subject to think about. And it's actually giving terms in electrical. That's the power factor. So we will be heading on talking about all of those. Okay, now the hammer. As we talk about it right now, hammer gets its energy when I start swinging it. And in my energy and that hammer is basically equal to the speed squared. It's called MV squared, the mass of the hammer head. Times the velocity squared is a hammer on a nail or my thumb usually. And release all that energy. Energy in a rubber band or a spring actually is equal to related to the distance, the distance that is being stretched. So this was related to distance. This is related to velocity. The velocity is equal to distance divided by time. So man, now we're all ready into the fourth dimension here, the dimension of time. So what happens if we take the hammer and we put it on a rubber band and we release it. Okay, eventually it's going to settle down and it's going to stretch the rubber band amount of energy that gravity is pulling the hammer down. But when we first turn it loose it overshoots and then it goes back. Well, the reason it overshoots is because the hammer is moving. So the hammer has excess energy in it. So it pulls the rubber band past the point where the rubber band wants to go. And then the rubber band now has excess energy. So it pulls the hammer back up. Again, having the hammer to move to the hammer overshoots and then goes back down. So those two are kind of like 180 degrees. This one is at maximum energy, the rubber band. And this maximum stretched and the hammer is at maximum energy when it's moving the most. So between those two we have an interesting little motion occurring which is related to AC electricity. The same thing happens. The inductor and the capacitor together formed something called a tank circuit which was given that name because it was as if there was two tanks. Water was sloshing from one tank to the other. So again, that has the kind of the same thing. The same deal with the earth. As we talk about temperature and storage of the temperature in the earth. As the earth, as the days get shorter and there's less energy coming in from the sun, the earth stores less. But it still has some in reserve so it tends to make it last a little bit longer than the shortest day of the year. And the hottest day of the year is usually about 27 days after the longest day of the year. So where we're heading is those equations. And we will talk about the release of that didn't work too good. The release of energy of these things. I ain't doing too good here. In my rubber band gun, I ain't getting along. So that's the subject we'll be talking about. Me and one just remember I'm the crazy old man. Guns don't kill people. I kill people. Get the gun with shooting. There we go. I have a good one.