Comment on 2019 redefinition of the SI base unitsparentComments−effie7yGlad that is a deprecated formulation. One never has collection of photons of exact frequency of net mass 1kg. Also 1kg weight can't be realistically entirely turned into photons.−saagarjha7yYour sarcasm was a bit hard to distinguish ;)−effie7yThere wasn't any sarcasm intended.−marcosdumay7yIsn't the new definition completely equivalent with the GP's one?
Comments
Glad that is a deprecated formulation. One never has collection of photons of exact frequency of net mass 1kg. Also 1kg weight can't be realistically entirely turned into photons.
Your sarcasm was a bit hard to distinguish ;)
There wasn't any sarcasm intended.
Isn't the new definition completely equivalent with the GP's one?