Why Is The Speed Of Light In Vacuum A Constant Of Nature?
Light in a vacuum motion at a perpetual fastness of 299,792,458 cadence per 2d ( about 186,000 miles per second ) . This peculiar value is quite arbitrary and it depend on the convention that we adopted back in 1975 of what a second and what a measure is . Light itself , as far as we can severalise , always moves in a vacuum at the same speed – here , in the Andromeda galaxy , and in the furthest stretch of the visible creation ....