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Lightsecond

A light-second is the distance that light travels in one second, which is equal to 299,792,458 meters. This is about three-quarters of the distance from Earth to the Moon. To better comprehend this measurement, consider a line in a library represen­ting a light-second. Each book represents one hundred-thousandth of a light-second, approximately 2.997,92 meters. The line, covering a full light-second, is represented by arranging 100,000 books on 100 bookshelves, creating a tangible representation of the vastness and the considerable velocity of light.
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