Kuka on nimennyt nanometrin?
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre ( m). The name combines the SI prefix "nano-" (from the Ancient Greek , ', "dwarf") with the parent unit name "metre" (from Greek , ', "unit of measurement"). It can be written in scientific notation as , in engineering notation as , and as simply metres. One nanometre equals ten ångströms. When used as a prefix for something other than a unit of measure (as in "nanoscience"), nano refers to nanotechnology, 
or phenomena typically occurring on a scale of nanometres (see nanoscopic scale). 
Ancient Greek