Hello! I want to have a project to work on. Not a simple project (hands-on) that'll take a few weeks, but an in-depth project that could take me several years. This is not necessary, but I need something that could really teach me something, not something that is simple and rather miscellaneous. I am also looking projects that are equivalent in difficulty of building a fusor reactor - but with even more background in physics and slightly less in chemistry. I have a decent background in electrics. In the theoretical sense, I have completed AP Physics and I am taking Calculus III. I am also looking for something to build - not a science project related thing. I am willing to spend a lot of time and effort into this if it is something that fascinates me. Thank You. P.S. Something unique would also be nice - not something that hundreds of people have already done.