Add Yahoo as a preferred source to see more of our stories on Google. Le kilogramme est mort. Vive le kilogramme! The U.S. National Institute of Standards and Technology called this Friday a “turning ...

The kilogram is losing weight and many international scientists, including some at Sandia National Laboratories, agree that it’s time to redefine it. Scientists are hoping to redefine the kilogram by ...

How much is a kilogram? It turns out that nobody can say for sure, at least not in a way that won’t change ever so slightly over time. The official kilogram – a cylinder cast 118 years ago from ...

Redefinition of the kilogram will not make the kilogram more precise, but it will make it more stable. A physical object can lose or gain atoms over time, or be destroyed, but constants remain the ...

Scientists are preparing to officially update the definition of a kilogram after using an old metal prototype as the global reference for almost 130 years. Since 1889, the exact mass of one kilogram ...

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our ...

Despite having weighed myself in kilograms for quite some time, I've never really contemplated exactly who or what decides what a kilogram is (other than, obviously, being 1,000 grams). But it turns ...