It means what quality or units. Length, weight, density, speed, brightness, humidity etc.
or units; Feet, Metres, Kilogrammes, cubic miles, degrees, or just simple numbers, i.e. "There are 6 trees" etc.
a type of measurement that the us uses
Be more specific, what do you mean by quartz?: Are you talking about the quartz in side an atom? A unit of measurement? Or possibly a type of rock?
A unit is a type of measurement that has not been determined. Meters, feet and centimeters are types of units.
The measurement of 30 minutes is a measurement of time.
That type of measurement would be referred to as a qualitative measurement.
It is a linear measurement.
length
5'5 is a length measurement and pounds is a weight measurement. They can not be converted from one type of measurement into another.
Be more specific, what do you mean by quartz?: Are you talking about the quartz in side an atom? A unit of measurement? Or possibly a type of rock?
It is a measurement of the depth of water. One fathom = 6 feet.
depends on the needed measurement and type of triangle.
Metrology is the science of measurement.