Am I the only one who isn't getting any text in that article (except the first line)?? Firefly322, if you want to write an article but only have headings right now, you should seriously consider using your userspace to develop it at least to have some content. However, there are concerns about duplicating/forking content, so maybe you should be sure it's going to be a productive/worthwhile use of your time. I would also point out that it is not our job to teach first-year physics with calculus, nor are we here to write articles "For Physicists and Engineers."