1. 1 Measurement technology: background and development o The extensiveness. essence and scientific significance of measurement technology > Whatever exists, exists in some amount >I often say that when you can measure what you are speaking about and express it in numbers, you know something about it, and when you cannot measure it, when you cannot express it in numbers your knowledge is of meager and unsatisfactory kind. It may be the beginning of knowledge, but you have scarcely, in your thought, advanced to the stage, Whatever the mater elvin William Thompson)❑ The extensiveness, essence and scientific significance of measurement technology: ➢“Whatever exists, exists in some amount.” ➢“I often say that when you can measure what you are speaking about and express it in numbers, you know something about it, and when you cannot measure it, when you cannot express it in numbers, your knowledge is of meager and unsatisfactory kind. It may be the beginning of knowledge, but you have scarcely, in your thought, advanced to the stage, whatever the matter be.” 1.1 Measurement technology: background and development -- Lord Kelvin (William Thompson)