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Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting - YouTube
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Light Year Visible light travels at a speed of 186,000 miles/second, or to think of this speed in terms of time and distance, a light- second is 186, ppt download
![SOLVED: How many times can the light travel around Earth in 1 second? Assume that the light travels along the Earth equator, the radius of Earth is about 6,371 km, and the SOLVED: How many times can the light travel around Earth in 1 second? Assume that the light travels along the Earth equator, the radius of Earth is about 6,371 km, and the](https://cdn.numerade.com/ask_previews/731a9853-620a-4b4a-9591-c87ca8fd966a_large.jpg)
SOLVED: How many times can the light travel around Earth in 1 second? Assume that the light travels along the Earth equator, the radius of Earth is about 6,371 km, and the
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