Our goal is to give you some of the feel for the very wide range of phenomena of things that people do. Have a little bit of fun and get you excited about this. One, two, three. I'm going to close my eyes and I'm going to calculate where the bowling ball comes back to. Put them out. He slowed down. It's easy to slow things down. Pull them in. And he speeds back up again. Okay, now just rotate it over. Oh, wait, oh, wait. There we go. That's the second can that it went through. They just fun. And if I hit it right, I can get it to spin. But the thing is getting smaller and smaller and smaller. You're hearing, you're playing heat to the water until finally it boils at its high temperature and starts to rise, which is kind of cool, right? Michaela is extremely brave. Watch her hair. You can see it for us, though. Three, two, one. Yeah, there's up. This is light not moving in a straight line. The light isn't nearly as interesting as the information that it can move. You can use that color of infrared light or that frequency of infrared light to tell temperature. Every object produces infrared light at a color or wavelength that corresponds to its temperature.