While most of the rest of the world uses the metric system (formally known as the International System of Units, or SI), the United States uses the U.S. Customary System, which—fun fact—is ...

In other words, the French introduced not only national standards, but a system of standards. It survives today as the metric system.

Units from the metric system can be used to describe the mass, volume or length of an object. Mass is measured in grams (g) and kilograms (kg). Volume is measured in millilitres (ml) and litres (l).

At least that’s what I thought until the editors got hold of the story and reminded me that this magazine does not use metric units. Convert all kilometers to miles, they said, all meters to ...

Objects can be measured in different units, depending on their size. It is important to know the conversions between metric units. When you are converting one type of unit to another you need to ...

And Canadians do this all the time. Most of the world uses the metric system. The Americans use imperial. And then Canada uses an unholy amalgam of both. It’s one of our weirdest national traits ...

A nanometer (nm) is a unit of length in the metric system, defined as one billionth (10-9) of a meter (m). The meter is the base unit of length in the International System of Units (SI), making the ...

A nanosecond (ns) is a unit of time in the metric system, equal to one billionth (10-9) of a second (s). The second is the base unit of time in the International System of Units (SI), making the ...

In the meantime, a new system of weights and measures, developed by French scientists following the Revolution of 1789, gained increasing international use. This metric system had as its fundamental ...