As you've already been advised in another thread, the New Member Introduction forum is not for technical questions. Instead, post your new thread in one of the technical forums, like:
etc. You can access those forums and other technical forums by clicking on the "PhysicsForums" logo in the upper left of the window to get to the top level menu.
Also, when you do start a thread in the technical forums, be sure to post links to your reading that you've been doing trying to answer your own question. We need to see your links in order to help us help you with your question. Thank you.