From what I understand, gravity is a weak force compared to the other 3 basic forces -- especially compared to electromagnetism. It takes the entire planet to pull my long hair towards the ground, but only a little static electricity to make it stick up above my head and defy gravity.
If that's true, then why can't we make some kind of electromagnetic suit and fly like Superman? Or why can't we just make an anti-gravity machine using the laws of electromagnetism? Just wondering haha.|||It might be possible, but think about what you are proposing. In order for electromagnetism to work, you must have opposing forces. This would entail having a "highway" of electrically charged particles under the vehicle.
Also, keep in mind that (as paranoid as it sounds), much of the transportation engineering that we currently have is designed to be inefficient. Your car burns gas and breaks down because it was DESIGNED to do so. We are a consumer driven economy....there is more money to be made by selling a product that is inefficient. That way, consumers are required to replace thier vehicle and to purchase expensive fuel.|||There sort of is such a thing. The problem is that you would have to have a strong electromagnetic field over a large area. This means using a lot of electricity and you'd need to have a material that conducts electricity very well.
Currently there is an experimental train that 'floats' above it's track by using superconductive rails using the same principle you described.
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