The International System of Units (SI Units), adopted in 1960, is the global standard for consistent measurement, replacing ...

The U.S. National Institute of Standards and Technology called this Friday a “turning point for humanity,” even though the difference between this day and the day before weighs, theoretically, nothing ...

Scientists and policy makers from around 60 nations voted unanimously Friday to redefine the kilogram. The decision at the General Conference on Weights and Measures in Versailles, France was greeted ...

Every measurement we make, be it for length, time, temperature, or electric current, needs a standard unit so that results ...

A new definition of the kilogram is required, an international team of scientists contends. The current one is imprecise, they say, because it is not linked to an unvarying property of nature. The ...

This is the second article in a series giving you a behind-the-scenes look into the hows and whys of the decisions that go into our recipe writing at the L.A. Times. A reader recently asked me, after ...