"A popular myth is that lightning cannot strike the same place twice, but nothing could be further from the truth. Lightning does, can and will strike the same exact place more than once. It doesn’t have a memory, and if an object has been struck once, it is no less likely to be struck a second time. If you don’t believe me, just ask some of the employees at Cape Canaveral in Florida. The shuttle launch pad gets hit time and time again, sometimes more than once in the same storm. How about the Empire State Building in New York city which gets struck by lightning about 25 times each year. Even Roy Sullivan was struck by lightning 7 times!
The truth of it is, lightning is simply trying to balance a charge separation; positive and negative. Very tall objects such as skyscrapers, mountains and radio towers are more likely to be struck because they narrow the gap between the charge separation of the ground below and the oppositely charge cloud above. When the charge builds up enough to overcome the resistance of the air, the opposite charge will rush upwards along the structure more easily than through the air and as a result the gap between the two charges is lessened increasing the chance of a strike."
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continue a ler aqui:
http://www.weatherimagery.com/blog/lightning-strike-twice/
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