This metric system had as its fundamental unit of length the meter, defined to be a small fraction of the length of a meridian of the earth. Other units of length were decimal multiples or fractions ...

The metric system is used by almost every country in the world, making it a universal language of measurement. The United States officially endorsed the metric system in 1975, but implementation has ...

Units of one measure, such as length, increased by powers of ten (millimeters, centimeters, decimeters, meters). A liter was the ... not only national standards, but a system of standards. It survives ...