In January 1992, a storm knocked a shipping container into the North Pacific and 28,800 rubber ducks went overboard. They kept washing ashore for the next twenty years — from Alaska to Hawaii — and oceanographers used them to map how the sea really moves.
This site lets you rerun that accident from anywhere. Drop a duck, and a drift model trained on decades of satellite-tracked buoys plays out its next ten years — including whether it joins one of the great garbage patches, the slow whirlpools where the ocean collects what we lose.