Materials2.5” diameter 0.5” thickness disk of material of choice (independent variable)100ml Liquid nitrogen, stored in an open lid styrofoam cup (or any other non-heat conductive container. MUST BE OPEN LID)0.25” length/diameter cube/disk shaped rare earth magnetPetri dish more than 5” diameterPlastic tongs, sized reasonably to grab rare earth magnetSafety Glasses
ProcedurePlace the material of choice in the centre of the petri dish.Place rare earth magnet on top of the material of choice using plastic tongs.Pour enough liquid nitrogen so that the material of choice is not submerged, but rather slightly below the top of the disk. Make sure not to displace the magnet.Visually observe the magnet for any levitation for 5 minutes. Record observations.Remove the magnet and material of choice with plastic tongs (remove the magnet before the material)Carefully dispose of the liquid nitrogen, or pour back into the container previously used with extreme caution.
Yellow Cake
Sapphire
Meteor
Yay! Because the magnet on the meteor is levitating, it must mean that the meteor is superconductive at room temperature!
None of them work, until Timmy tests the green meteor he found in his back yard a few months ago.
Пързалка: 2
Timmy built a superconductive wire-using the meteor-from his cousin Jimmy's house in Boston. Now trading lossless power between their homes and saving both of their families money.
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SUPERCONDUCTIVE POWER LINE
Timmy can even run the powerline directly into Jimmy's house because he no longer needs a higher voltage so that less power is lost. This lower voltage is usable in homes, unlike normal high voltage cables