Knowledge about anything is complete only when it can be expressed in numbers and something is known about it. Thus, for every kind of quantity measured, there must be a unit to measure it and express it in the numbers of that unit. The... more
Knowledge about anything is complete only when it can be expressed in numbers and something is known about it. Thus, for every kind of quantity measured, there must be a unit to measure it and express it in the numbers of that unit. The unit has to be followed by all, and hence there must be a universal standard. The most important parameter in metrology is length, which can be measured in several forms and in several ways. Measurement plays a vital role in every field of investigation, and present day scientific and technological progress has resulted from progress in the field of measurement.
