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 National Physical Laboratory and Queensgate share an unrelenting passion for better precision at the cutting edge of measurement science Queensgate XY stage in AFM at National Physical ...

Throughout any given year, the National Academies convene hundreds of conferences, workshops, symposia, forums, roundtables, and other gatherings that attract the finest minds in academia and the ...

In our daily lives, we use measurements constantly, whether it is checking the temperature, weighing vegetables, or measuring ...

Scientists are preparing to redefine the fundamental unit of time. It won’t get any longer or shorter, but it will be more precise — and a whole lot more powerful. By Alanna Mitchell Modern ...

Wednesday marks World Metrology Day, commemorating the 1875 treaty introducing the Metre Convention, which has led to the metric system of units. Since 1902, the body responsible for defining and ...

The mystery deepens when we discover that ancient Greek temples, built thousands of miles away and centuries later, encoded the same geodetic principles—their measurements directly derived from the ...