Its time for us to take the complex math we thought had no point from highschool and turn it into an aniamtion. actually cos/sin are so useful as we can use them any time we need to track movement such as when you create a googly eye that follows the mouse (that is done using cos-sin) in this example we will use them to create a moon for our globe.

full video here (i tried to embed but it didn't work)