Height/weight machine, London, England, 1850-1855
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Glossary: weighing machine
A machine (sometimes referred to as a scale) for weighing persons, objects or large weights.
Measurement is the process of estimating the magnitude of some attribute of an object, such as its length or weight, relative to some standard (unit of measurement), such as a meter or a kilogram. The act of measuring usually involves using a measuring instrument, such as a ruler, weighing scale, thermometer or speedometer which is calibrated to compare the measured attribute to a measurement unit. Metrology is the scientific study of measurement.