Correction for the speed of a bolt of Lightning
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How fast is 390,000 inches per hour?
It's about one-thirty-five-thousandth as fast as a bolt of Lightning
The speed of a bolt of Lightning is about 14,000,000,000 inches per hour.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to 14,000,000,000 inches per hour when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.