Half-Life Explained: Why One Atom Is Random but a Million Aren't

You can't predict when one unstable nucleus will decay, but a big sample decays on a perfectly predictable schedule. This video explains the exponential decay law, why "after two half-lives it's all gone" is wrong, why decay never quite reaches zero, why ordinary heat and chemistry don't change a half-life, and how the same physics powers carbon dating. Public, educational nuclear science. Animated explainer, no hype. #halflife #radioactivity #nuclearphysics #physics #science Educational content based on publicly available science. Independent channel; views are my own and not those of any employer.