“The word for a river's flow is also the word for electricity, for events, for what is happening right now—all from the Latin verb meaning 'to run.'”
Latin currere meant to run. From it came currens (running), and then Anglo-French corant—the sea current as a running of water. Sailors in the medieval Mediterranean learned to read ocean currents not as obstacles but as rivers within the sea: the Gulf Stream, the Canary Current, the Agulhas—each a highway or a trap depending on your direction of travel. The word captured exactly this: water that runs, water that has a direction and a purpose.
Benjamin Franklin mapped the Gulf Stream in 1770, working from observations by Nantucket whalers who had noticed that mail packets from England took two weeks longer to cross than the whalers expected. Franklin recognized the current as a river within the ocean—warm, swift, two to three miles per hour—and drew it on a chart. He called it 'the Gulf Stream' but the underlying concept was currere: the sea runs here.
Electricity borrowed the word in 1747 when Benjamin Franklin (again) described electrical flow as a current—something that ran from one point to another. The analogy was hydraulic: electricity moved like water through pipes, and the vocabulary of fluid mechanics colonized the new science. Ampere, volt, current, resistance—all hydraulic metaphors. The river is still in there.
Current in English now means both the physical flow and the temporal now: 'current events,' 'current affairs,' 'currently.' This happened because currens also meant 'in motion' and therefore 'happening now'—the running moment, the flowing present. Time and water share a word because both run.
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We say 'current events' and 'electrical current' without noticing they are the same word. Both are flows. Both run. The moment you are in — the present, the now — is called current because it is the running moment, the one in motion. All others are still.
Sailors knew this first. They learned to read the ocean's running as a map of forces beneath the surface. Franklin charted what the Nantucket whalers already navigated by instinct. The sea runs. The word runs. The moment runs.
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