But instead of rotating around the x-axis this time, I want to rotate around the y-axis. And instead of going between zero and some point, I'm going to go between y is equal to one and y is equal to four. So what I'm going to do is I'm going to take this graph right over here, I'm going to take this curve, instead of rotating it around the x-axis like we did in the last few videos, I'm going to rotate it around the y-axis. So I'm going to rotate it around just like that. So what's the shape that we would get? Let me see if we can visualize this. So the base is going to look something like that.