We discuss how superconductivity works and how a superconductor can have a levitating magnet above it. Specifically, we explain how BCS theory works in conventional superconductors. Where the electrons come together as Cooper pairs. We also briefly highlight the mysteries around unconventional superconductors. BCS theory was discovered by Bardeen, Schrieffer and Cooper, hence the name.

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NileRed's video:    • Making superconductors  

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