Something Weird Happens When E = –mc²

This video unpacks how Paul Dirac wrestled with negative energy in quantum mechanics—starting with the shaky Schrödinger and Klein–Gordon equations, moving through Heisenberg’s uncertainty, and culminating in the Dirac equation that predicted the positron (the anti-electron) and hinted at an “anti-world” where antiparticles zip backward in time.

Packed with expert insights from Graham Farmelo and Cumrun Vafa, plus rare archives from Florida State University and Caltech, it’s a fun, informal ride through the birth of antimatter and the strange legacy of one of physics’ most enigmatic geniuses.

Watch on YouTube