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 ...

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 ...

In the age of big data, it is time to ensure that units are routinely documented for easy, unambiguous exchange of information. Robert Hanisch is the director of the Office of Data and Informatics at ...