A ring current is an electric current carried by charged particles trapped in a planet's magnetosphere. It is caused by the longitudinal drift of energetic (10–200 keV) particles.
Read more about Ring Current: Earth's Ring Current, The Ring Current and Geomagnetic Storms
Famous quotes containing the words ring and/or current:
“Interpreting the dance: young women in white dancing in a ring can only be virgins; old women in black dancing in a ring can only be witches; but middle-aged women in colors, square dancing...?”
—Mason Cooley (b. 1927)
“A man is a little thing whilst he works by and for himself, but, when he gives voice to the rules of love and justice, is godlike, his word is current in all countries; and all men, though his enemies are made his friends and obey it as their own.”
—Ralph Waldo Emerson (1803–1882)