If someone tells you that you are doing something lightening fast, then they mean that you're moving at speeds 270,000 miles per hour or 75 miles per second!
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Approx. 270,000 mph or about 75 miles per second. Lightning creates light but is an exchange of energy and is, therefore subject to friction so it does not travel the speed of light
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Light travels at a constant, finite speed of 186,000 mi/sec. Thanks...
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1. Open the Excel 2010 spreadsheet where you want to add your formula. 2. Select the first cell where you want the formula to appear and type in your formula. Press "Enter"
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