Dr. Cat saw Paddle2See's excellent project and said, "I can teach that!!" So here is Dr. Cat and the class. --------------------------------------------------- In the original project Paddle2See said: This project is just a simple visual effect. I was thinking about parabolic curves and I decided to make a project to demonstrate how handy they are for making trajectories. So if you want an object to be thrown from one location to another, a parabola is a good curve to use. --------------------------------------------------- My apologies to Paddle2See. I urge everyone to visit the original project!! :-) Enjoy!