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- ANN's Daily Aero-Term (04.27.14): St. Elmo's Fire
St. Elmo's Fire A luminous, and often audible, electric discharge that is sporadic in nature. It occurs from objects, especially pointed ones, when the electrical field strength near their surfaces attains a value near 1000 volts per centimeter. It often occurs during stormy weather and might be seen on a ship's mast or yardarm, aircraft, lightning rods, and steeples. Also known as corposant or ...
April 27, 2014 - The Aero-News Network