How Special Relativity Makes Magnets Work
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Why it's on BrighterTube
Hand-picked by a BrighterTube curator · found via HackerTube (Karpathy's dataset of videos Hacker News recommends · 90% confidenceA classic derivation (also in Purcell's textbook) made visual; teaches that electricity and magnetism are one phenomenon.
What you'll learn
Shows how a magnetic force on a moving charge near a current-carrying wire can be understood as an electric force plus special-relativistic length contraction.
Video by Veritasium, played through YouTube's embedded player.
Go deeper
- Black Holes and Time Warps, Kip ThorneKip Thorne's popular history of black holes and relativity
- Spacetime and Geometry, Sean CarrollSean Carroll's standard textbook on general relativity
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