Units of measurement
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Speed of light (c)
Knot (kn)
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Information
Speed of light (c)
Speed of light (c) is a fundamental physical constant equal to 299,792,458 m/s. It is the maximum speed at which information or matter can travel.
Knot (kn)
Knot (kn) is a unit of speed used in maritime and aviation navigation, equal to one nautical mile per hour (approximately 1.852 km/h).