system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How is Chernobyl still dangerously radioactive but Hiroshima and Nagasaki were being rebuilt not even a decade after the atomic bombings?
gpt
For a few reasons. The Fat Man and Little Boy bombs detonated several hundred feet above ground level, and in doing so expended only 2 pounds each of their plutonium and uranium fuel. The Chernobyl reactor accident was at ground level and the reactor contained 180 TONS of radioactive fuel.