How much distance ligh covers in one century
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Estimates that ranged from about 299,000 to 315,000 km/s (185,790 to 195,732 mi/s).
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Over the course of the nest two centuries, the speed of light was refined further and further, producing estimates that ranged from about 299,000 to 315,000 km/s (185,790 to 195,732 mi/s).
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