Diamagnetism: How to Levitate a Frog
You might associate levitation with magic, but science has its own version. We're conducting a survey of our viewers! If you have time, please give us feedback: ...
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[♪♩INTRO] Levitation -- it is a time-honored staple among superpowers and magic spells, but it’s not totally fictional. In the real world, we can use magnets to levitate anything from trains to metal desk toys. And you might think levitating something nonmagnetic, say, like a large sack of mostly water, is just for Hermione Granger or Jean Grey -- but it’s not. It can actually happen, thanks to a phenomenon called diamagnetic levitation. And scientists don’t just use it to pretend to be superheroes. It has a lot of potential applications, both in industry and research. We often classify materials as either being magnetic or non-magnetic, but that’s not entirely accurate. See, inside an atom, electrons are constantly buzzing around creating little loops of current. And be...
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[♪♩INTRO] Levitation -- it is a time-honored staple among superpowers and magic spells, but it’s not totally fictional. In the real world, we can use magnets to levitate anything from trains to metal desk toys. And you might think levitating something nonmagnetic, say, like a large sack of mostly water, is just for Hermione Granger or Jean Grey -- but it’s not. It can actually happen, thanks to a phenomenon called diamagnetic levitation. And scientists don’t just use it to pretend to be superheroes. It has a lot of potential applications, both in industry and research. We often classify materials as either being magnetic or non-magnetic, but that’s not entirely accurate. See, inside an atom, electrons are constantly buzzing around creating little loops of current. And be...
