Since time immemorial human beings have been weighing and measuring objects in one form or the other, and have been trying to define units of measurements. Normally one compares a quantity of a particular body with that of another body, whose quantity, under question, is known. In earlier days, one might have compared similar quantities, one of which could have been a part of the human body, for example the foot of a person. The problem with such definitions was encountered when this unit was to be implemented throughout the country. In this case, persons with different foot lengths would assign different numbers for a given distance. To obviate this difficulty they could have decided to estimate all distances in terms of the king’s foot length. However, the problem with this system would be that the king could not be expected to go wherever a distance needed to be measured, and the question of what would happen after his death too would arise.
S. V. Gupta
Journal name not available for this finding