The Need of Measurement:
During an address on the subject of measurement, Lord Kelvin, a British scientist, stated a fundamental principle of science. “I often say that when you can measure What you are speaking about and express it in numbers, you know something about it”. he clearly stressed that little progress is possible in any field of investigation without the ability to measure. Present-day mass production, processed products, world wide communications and travel. and scientific and technological progress could not exist without adequate measurement techniques. The progress of measurement is, in fact, the progress of science.
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