The key features of the International System are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.
Typically, in measuring an object's weight, the object is placed on scales at rest with respect to the earth, but the definition can be extended to other states of motion.
Derived units can be divided into two groups—those that have a special name and symbol, and those that do not.
A method for determining quantity, capacity, or dimension.
Urge and urge and urge, Always the procreant urge of the world.
Out of the dimness opposite equals advance, always substance and increase, always sex, Always a knit of identity, always distinction, always a breed of life.