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Does lightning only strike in one direction?

Lightning can go from cloud to ground, from ground to cloud, and from cloud to cloud. Lightning can go from cloud to ground, from ground to cloud, and from cloud to cloud. (Tommy Metthe/Abilene Reporter-News/File 2005)
October 8, 2007

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The first thing to agree on is what the "direction" of an electrical current is, which is to some extent a matter of convention. For the following, let's call the direction of an electrical current the direction in which electrons go. (Full article: 338 words)

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