I came across this video recently and learned quite a bit from it. I never thought about what the standard for a Kilogram was or if there was a formula that stated it. It is interesting to learn that there are actual physical standards that define the kilogram and they they vary in mass. I learn something new every day and this video was really informative as well as making one think about how mass is measured. New technology allows us to change definitions of laws and having an object that is a pure kilogram is important but so is now having a definition of what constitutes the design and make of the object. I hope you learn something new today.