Wednesday, May 16, 2012

Eiffel Tower....

photo taken on May 6, 1919, of the Eiffel Tower being struck by lightning.
Lightning strikes the Empire State Building about twenty-five times a year.
Every 24 hours, about 8,640,000 lightning bolts touch the earth.
A lightning flash can contain 1 billion volts of electricity and is 5 times as hot as the surface of the sun!
Why do we hear thunder? Due to the excessive heat produced by lightning, air molecules expand and vibrate with such a immense speed that a thunder noise is created.

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