SI

The International System of Units (abbreviated SI from the French phrase, Syst?me International d'Unit?s) is the most widely used system of units. It is the most common system for everyday commerce in the world, and is almost universally used in the realm of science.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

In 1960, the SI was developed from a subset of the existing Metre-Kilogram-Second systems of units (MKS), rather than the older Centimetre-Gram-Second system (CGS). Various new units were created at that time. The SI is not static, it is a living set of standards where units are created and definitions are modified with international agreement. The SI authority describes SI as the modern metric system where modern means post-1960. It is common for people to describe non-SI units as 'metric', although there is no authority that maintains a current definition of metric system other than SI.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

With a few exceptions (such as draught beer sales in the United Kingdom) the system is legally being used in every country in the world and many countries do not maintain definitions of other units. In the United States the use of SI is increasing but is still limited. In the United Kingdom, conversion to metric units is official policy but not yet complete. Those countries that still give recognition to non-SI units (e.g. the US and UK) have defined many of the modern units in terms of SI units.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

French: French can refer to more than one article:...

System of units: REDIRECT Systems of measurement...

Commerce: This article is about the business concept; Commerce is also the name of several places in the United States....

SI related Images and Photos (experimental)

Si Soy Asi	C.S.I.: Crime Scene Investigation, Seasons 1-10 DVD	C.S.I. Crime Scene Investigation, Seasons 1-10 DVD	C.S.I. Crime Scene Investigation, Seasons 1-10 DVD
C.S.I.: Crime Scene Investigation, The Tenth Season DVD	C.S.I.: Crime Scene Investigation, The Tenth Season DVD	C.S.I.: Crime Scene Investigation, The Tenth Season DVD	C.S.I.: Miami - The Eighth Season DVD
C.S.I. Miami - The Eighth Season DVD	Si Accorse di Lui	C.S.I.: Crime Scene Investigation The Complete Tenth Season DVD	C.S.I. Crime Scene Investigation The Complete Tenth Season DVD