Levitating Superconductor on a Möbius strip
Andy takes a closer look at one of his favourite demos from the 2012 Christmas Lectures, bringing together a levitating superconductor and a bewildering Möbius strip made from over 2000 magnets....
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[MUSIC PLAYING] I wanted to show you one of my favourite props from last year's Christmas Lectures, which is a Mobius strip steel track, covered in maybe 2,000 or 3,000 of these super strong neodymium magnets. [MUSIC PLAYING] So what I want to show you is how this track is going to interact with one of these. This is a high temperature superconductor, made of yttrium barium copper oxide. It's a sort of ceramic material. And a superconductor is something that, when you cool it down, in this case with liquid nitrogen, it loses all its electrical resistance. So this leads to some interesting behaviours, which I'm going to show you. And to do that I'm going to need to hang this thing from the ceiling, which I'll do now. [MUSI...
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[MUSIC PLAYING] I wanted to show you one of my favourite props from last year's Christmas Lectures, which is a Mobius strip steel track, covered in maybe 2,000 or 3,000 of these super strong neodymium magnets. [MUSIC PLAYING] So what I want to show you is how this track is going to interact with one of these. This is a high temperature superconductor, made of yttrium barium copper oxide. It's a sort of ceramic material. And a superconductor is something that, when you cool it down, in this case with liquid nitrogen, it loses all its electrical resistance. So this leads to some interesting behaviours, which I'm going to show you. And to do that I'm going to need to hang this thing from the ceiling, which I'll do now. [MUSI...
