the distance light travels at a certain time - then it’ll just be based on our artificial units of time
cesium oscillation i don’t know much about but from what i quickly read it’s also about keeping time, 1s to be precise, which is still an arbitrary unit
Time can be non arbitrarily defined as a round number value of times cesium oscillates between two hyperfine states, to allow time to be non arbitrary and still a useful size.
Proton masses, the distance light travels in a vacuum in a certain time, and cesium oscillation times are quite constant.
proton masses are rather small - inconvenient
the distance light travels at a certain time - then it’ll just be based on our artificial units of time
cesium oscillation i don’t know much about but from what i quickly read it’s also about keeping time, 1s to be precise, which is still an arbitrary unit
Time can be non arbitrarily defined as a round number value of times cesium oscillates between two hyperfine states, to allow time to be non arbitrary and still a useful size.