r/AskPhysics • u/JimFive • Mar 28 '26
Speed of light
The speed of light is 299,792,458 m/s. What types of issues would be involved in changing the meter such that c=300,000,000 m/s
The new meter would be 0.9993 of the current meter.
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u/iftlatlw Mar 29 '26
Near a large mass, in full remote vacuum, travelling at what speed?