codient

Energy systems explain how energy flows through the world — from the three pathways firing in your muscles during a sprint to the solar panels and turbines powering entire cities. Understanding them changes how you see both your own performance and the world's biggest engineering challenge. Here's a fact that surprised me when I first encountered it: the average sprinter depletes their primary energy supply in under 10 seconds. Ten seconds. After that, the body switches to a completely different chemical process to keep moving. And after about two minutes, it switches again. Three entirely different systems, all running at once, each picking up the load as conditions change. That principle — multiple systems working together to manage energy flow — turns out to be just as true for a power grid as it is for a human body. Solar panels generate. Batteries store. Grid controllers dispatch. It's the same fundamental problem, just scaled up by a factor of millions. If you...