CompuServe Messages

Right .. that are a lot of things that make precise calculation a mighty complex thing. Happily, the request was for the most basic part of the calculation, where I felt sufficiently qualified to jump in and suggest the parabola. Many long years ago, I was amazed to learn some of the behaviour of a rifle bullet: that the spin caused first a drift to the right, then a veer to the left; or that rain *lifted* the trajectory rather than pushing the bullet downwards. Once you get into gyroscopic and Bernouilli effects, intuitive thinking goes out the window. –Jim