Assertion: metric system's base unit | /r/HasProperty | derived
Facets:
value: unlike in the previous definitions
type: OTHER
value: exclusively
type: DEGREE
value: from constants of nature
type: OTHER
Source sentences:
text: The original base units of the metric system could be derived from the length of a meridian of the Earth and the weight of a certain volume of pure water.
text: The metre, kilogram, second, ampere, kelvin,[nb 1] candela and mole were defined as base units in this system and units formed from combinations of these base units were known as "derived units".
text: Unlike in the previous definitions, the base units are all derived exclusively from constants of nature.