40 years ago, nuclear safety changed forever. Weeks before the Chornobyl disaster, scientists tested the Experimental Breeder Reactor II by simulating a meltdown. They cut power. They stopped cooling. And the reactor shut itself down automatically. No meltdown. No operator action. This proved something revolutionary: reactors can be designed with inherent (passive) safety. While Chornobyl defined public perception, EBR-II helped define the future and its lessons are still shaping today’s advanced nuclear designs. #History #NuclearHistory #EBRII #Nuclear #NuclearEnergy