Speed of Light
The speed of light is (by definition) exactly 299,792,458 m/s, very close to 300,000 km/s. This is a pure coincidence. It also roughly equals to one foot per nanosecond (the actual number is 0.9836 ft/ns).
Read more about this topic: Mathematical Coincidence, Some Examples, Numerical Coincidences in Numbers From The Physical World
Other articles related to "speed of light, light":
... half of the 20th century much progress was made in increasing the accuracy of measurements of the speed of light, first by cavity resonance techniques ... of krypton-86, a group at NBS in Boulder, Colorado determined the speed of light in vacuum to be c = 299,792,456.2±1.1 m/s. 1975 recommended using the value 299,792,458 m/s for the speed of light ...
... planning for a new and precise measurement of the speed of light that was needed to account for exact values of many astronomical constants ...
... for the expected motion of the Earth relative to the aether, the hypothetical medium in which light was supposed to travel, resulted in a null result ...
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