Re: Sad case of science ignoring the evidence
They redefined the kilogram because we already know what the kilogram is. We know this with things that can actually be calculated easily in a science lab, like a specific quantity of a substance with a known density, measured under a known pressure. That isn't infinitely measurable, so it can't be used by the SI people, but they didn't need to investigate why the kilogram chunks had different masses because they knew why and they didn't need to find the one true kilogram because they knew what a kilogram is. They just needed a math problem to give the mass of a kilogram so everyone else in labs can keep measuring mass exactly the same way.
Biting the hand that feeds IT
