Light-second
A light-second is a unit of length equal to the distance light in empty space travels in one second, and is exactly 299,792,458 meters.[1]
A light-second is a unit of length equal to the distance light in empty space travels in one second, and is exactly 299,792,458 meters.[1]
The light-second is used in telecommunications, astronomy, and physics. In telecommunications, it measures how much time it must take to send a signal a certain distance.
References
- ↑ International Bureau of Weights and Measures (2006), The International System of Units (SI) (PDF) (8th ed.), p. 112, ISBN 92-822-2213-6
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