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 ...

Most of the world does its measuring in meters, grams, and liters. The United States is the only major trading nation that does not use the metric system. So we often need to make conversions between ...

These standard units can be divided into two separate groups: imperial and metric. Depending on where ... traditionally have used the imperial system of measurement. Despite being seen as quite ...

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 ...

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 ...

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 ...