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## Main Question or Discussion Point

How was the speed of light proved to be 3*10^8...also How it was proved that nothing can exceed the speed of light?...and what will happen if something moves under the effect of certain force with constant acceleration in space i.e the net force on it is constant and not equal zero...is that possible and will that body at certain instant exceed the speed of light ?and if so what will happen....another question, does my absolute velocity in the universe exceed the speed of light i.e I move with 100 km/h the earth moved with x km/h and the galaxy and so on ...........

Thanks for consideration

Thanks for consideration