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Thursday, February 18, 2010

Which Travels faster ---- Light or Sound ?

Nothing is faster than light . it travels at 300.000 kilometers a second . Sound is slower – ‘only’ 330 meters a second ! you can judge this difference in speed during a thunderstorm. Then , we see an electrical charge in lightning , and hear it in thunder. Count the seconds between seeing the lightning and hearing the thunder. Each second equals 330 meters ! And when you count only 2 or 3 seconds , the storm is very near.

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