Columbia University Physics Lecture Demonstrations


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Mechanics
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5G50.50 Magnetic Levitation -- Meissner Effect

[Setup Time: 10 min.; Must request two days in advance to guarantee liquid N] [Current Condition: Good]

Info

Setup Instructions

1. Pour the liquid nitrogen into the foam until the foam is saturated.

2. Allow the superconducting disk to cool and then use the plastic tongs to place the magnet over the disk. It should levitate and can be spun freely

Parts List

Liquid Nitrogen Container in J. Modern Physics, 1A

Superconducting Disk and Tiny Magnet in E. E&M, 1C

Relevant Simulation

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Other Information

Superconductor Makes Magnet Levitate

Real-Life Examples

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More Advanced Reading

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