What unit of measurement should be used for specific reports? Whether printing out a check register or calculating square footage, using the correct team is essential. A size mistake can lead to ...

Taking the first steps of what would be a major historical advance in the science of measurement, the U.S. National Institute of Standards and Technology is participating in a worldwide effort to ...

In the biggest overhaul of the international system of units since 1875, countries have voted to redefine four basic units of measurement — the ampere, the kilogram, the kelvin and the mole. At a ...

If scientists had sacred objects, this would be one of them: a single, closely guarded 137-year-old cylinder of metal, housed in a vault outside of Paris. It is a prototype that precisely defines a ...

As ever more digital data is created and stored, the world needs more unit measurements to keep up with the ever-expanding numbers. To do so, the 27th General Conference on Weights and Measures on ...

Out with the old — kilogram, that is. Scientists will soon ditch a specialized hunk of metal that defines the mass of a kilogram. Oddly enough, every measurement of mass made anywhere on Earth is tied ...

The Imperial Measurement System, originated in Britain in 1824, is now primarily used by only three countries: the United States, Liberia, and Myanmar. Defined by non-decimal units like inches, pounds ...

Update, May 20th, 2019, 10AM ET: This article was originally published in November 2018. As of May 20th, 2019, World Metrology Day, the new definition of the kilogram based on Planck’s constant has ...

The metric system is great, but sometimes it simply doesn't do justice to what you're trying to describe. These highly-specialized units of measurement might be of use! Sagan. Inspired by and in ...

Using a state-of-the-art device for measuring mass, researchers have made their most precise determination yet of Planck's constant, an important value in science that will help to redefine the ...