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Showing posts from August, 2019

What is the speed of light?

The speed of light in a vacuum 186,282 miles per second(299,792 km/s) and in theory nothing can travel faster than light. In miles per hour, light speed is, well a lot, about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.