I'm a first year physics student, so I don't know too much about advanced physics, though I try to read a lot of physics books, mainly on Grand Unified Theories and such. Yesterday when I was in my physics class, a thought came to me. Could gravity be completely be explained by magnetism? What I mean is, could the net charge of the entire planet account for gravity? And since objects (like people, animals, etc.) all experience the same basic attraction since we are all so small (and therefore a small net charge) in comparison to the Earth? I tried to look some of this up on the Internet, but I couldn't really find anything that made sense to me. Could someone explain to me if this idea has been tried before (I assume that it has been), and if this is possible? And if so, could it help with Quantum Gravity, as in both cases magnetic attraction would be acceptable?