Conservation of Angular Momentum

Here's a couple of videos to watch to highlight a few examples of conservation of angular momentum. For the merry-go-round video, pay attention to how much mass is located at the edge of the merry-go-round and what happens to the angular speed when the mass becomes more closely distributed around the axis of rotation. You see the same ideas in the second video, adding in the vector nature of momentum (which we didn't cover in class, but is fun to see anyway).