Why am I able to repel two liked poles magnet despite the presence of earth gravity? The earth gravity is able to hold skyscrapers together but yet unable to prevent two magnets from repelling? I know there is an explanation that says that unlike graviton, all the other fundamental forces are bound to the brane. Thus gravity is able to propagate into other dimensions resulting in what we experience the weaker gravity force. I dont really get this but is there other way to explain?