Day 101 of 365
April 11
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Physics The Speed of Light Constant
The speed of light in a vacuum (299,792,458 meters per second) is the universe's ultimate speed limit. Nothing with mass can reach it, and as objects approach light speed, time dilation occurs. This constant is so fundamental that we now define the meter based on light speed. Einstein's relativity showed that as velocity increases, time slows and mass increases approaching infinity.
💡 Did you know?
If you could travel at light speed, you'd experience no passage of time - a journey across the universe would feel instant!
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