Why Does America Still Run on 120 Volts?

Why does America run on 120 volts while most of the world runs on 230? The answer is not that America chose badly — it is that America chose first, in a small brick building in Lower Manhattan in 1882, and then never got the chance to choose again. In this video: how Edison's Pearl Street station set a voltage that spread across a continent, why alternating current won the distance war but kept the old number, why Europe went higher, how America quietly gave itself 240 volts anyway, why Japan ended up with two frequencies, and what the whole split costs you every morning when you boil a kettle. Welcome to Stars & Strange — the weird history behind everyday things. New videos every week. Subscribe so you don't miss the next one. CHAPTERS 00:00 The Plug That Only Works at Home 01:58 Pearl Street Lights Up 04:22 The War of the Currents 06:58 Why America Kept Edison's Voltage 09:01 Why Europe Went Higher 11:26 The Country That Could Not Change 13:41 The Split-Phase Workaround 15:33 Japan's Frequency Split 18:10 The Safety Trade-Off 20:36 The Hidden Cost of Low Voltage 23:10 Why Your Charger Doesn't Care 24:54 Outro