 Now we know from earlier segments that the motion of fluid mechanics can be rather interesting and quite dynamic. But what we're going to do here is we're going to try to break those down into a number of different basic motions. We're going to look at the quantification of fluid motion and what we'll try to do is come up with representations in terms of quantities that we can measure or calculate and usually that's velocity in being able to describe these different motions. So when you look at a fluid, now there are four general types of motion. So there we have the four different types of motion, general motion and fluid mechanics. We have translation, which is basically just a fluid moving in the x and y direction. It can be the z as well. We have other motions. We have rotation, angular deformation, which is really shear related and then linear deformation, which would be expansion or contraction of the fluid. What we're going to do now, we're going to use the magic of YouTube. So if you want to learn anything more about, not translation, translation is pretty boring, but if you want to learn more about rotation, linear deformation or angular deformation, just click on the box or the image and through the magic of YouTube, it will take you to a video segment that describes each of those. And at the end of those segments, there will be a return button that will bring you back to this video. And so that is the quantification of fluid motion for different types, translation, angular deformation, rotation and linear deformation.