July 2, 2012
The Kilogram Cabal
The International Committee for Weights and Measures is about to reach a decision that could affect the teaching and understanding of basic science for the next hundred years. It has passed a resolution proposing a radically new definition for a ubiquitous word: "kilogram."
Is a new official definition of the kilogram necessary? The rule of thumb—that a kilogram is about the mass of one liter of water—works perfectly well for everyday use. When we read that our granola bar