Trial Animation

This is just a first attempt at an animation made with SketchUp and Gimp.

It represents rotating the region enclosed by ${\sqrt {x}}$ and $x^{2}$ around the y-axis. The steps represented are

1. Presenting the region;
2. Superimposing horizontal rectangles;
3. Revolving a single rectangle to produce a washer;
4. Revolving the remaining rectangles to produce a volume approximation with washers;
5. Realizing the final volume as a limit.