I wonder if it would work to cast a thick-waled bowl of bismuth and drop a magnet into it, would not that levitate the magnet? I have seen other setups but they seems more complicated.
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Welcome to the PF.I wonder if it would work to cast a thick-waled bowl of bismuth and drop a magnet into it, would not that levitate the magnet? I have seen other setups but they seems more complicated.
OK, so iron is very much stronger magnetic than the graphite or bismuth, iron is paramagnetic and the other two are diamagnetic. If bismuth was as strong diamagnetic as iron is paramagnetic maby my idee would work.Yeah. The problem is that while bismuth, and even more so pyrolite graphite is diamagnetic, it is still very weakly so. So, the diamagnetism can levitate a paper-thin sheet of graphite, but for levitating a magnet on its own it is too weak. That's where the regular magnet comes into play, to do the heavy lifting, and the graphite or bismuth only corrects the very small horizontal forces.
Is it possible to explaine the difference between these three without using a lot of quantum-math? I am an organic chemist and it was a long time since I read physics.Iron at room temperature is ferromagnetic. If it were just paramagnetic, the effect would likely be comparable (as week as) for bismuth. Just with opposite sign - attraction and not repulsion.