In this video, Derek Muller dives into Paul Dirac’s bold attempt to marry quantum mechanics with relativity—starting with the puzzling notion of negative energy in E = −mc² and uncovering how the Schrödinger equation falls short at high speeds. Along the way we meet the brilliant but reclusive “Strangest Man in Physics,” explore Heisenberg’s uncertainty principle, and see how Dirac’s new equation not only fixed the math but predicted a mirror-image particle—the positron—years before it was spotted in the lab.
We also get a peek at the bittersweet twists of Dirac’s life and career, plus wild implications like antiparticles traveling backward in time and the tantalizing idea of an entire “anti-world.” It’s equal parts physics history, personal drama, and mind-bending theory—all wrapped up in one fascinating journey into the birth of antimatter.
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