Changes
/* Volume */ previous definition was just wrong (see reference)
=== Volume ===
The base unit of volume is derived from the meter: it''liter''. Originally this was s the volume of a cube that was one ''decimetercubic meter'' on an edge[m<sup>3</sup>]. Today the definition has changedTraditionally, but only because the definition of ''lengthliter'' has changed, while the definition of ''mass'' (see below) has not<ref>http://www.bipm. To understand what a standard org/en/si/si_brochure/chapter4/table6.html</ref> is used. 1 liter is today (and why it is no longer exactly equal to one thousand cubic centimeters), one must turn to the definition of the unit of:defined as 10<sup>-3</sup> m<sup>3</sup> = 1 dm<sup>3</sup>.
=== Mass ===
