Saturday, September 24, 2011

Measurements as a Tool of Science

Measurement is the process of obtaining a numerical value representing a physical property, such as length, mass, or time, by way of a unit of measurement. A unit of measurement is a magnitude representing a physical quantity by use of  a standard for measurement of that physical quantity. A measuring device is a piece of equipment used to measure a physical quantity based on a standard for measurement.

Measurement and Objectivity

Measurements are the most objective part of science since the resulting numbers are what they are. The mechanical devices used for measurement aide objectivity by removing the human factor that is human subjectivity. The validity of a measurement is only as valid as the theory behind it.

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