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Thursday, May 23, 2019

Measurements


These are the top 10 landmarks in the history of making measurements


Metrology’s long history is enriched by new definitions of basic units

Market scale
WEIGHING IN A new definition of the kilogram, the metric unit of mass, is the latest advance in metrology, the science of measurement. A market scale in Argentina illustrates the use of decimal subdivisions for units, established in 1799 by the adoption in France of the original metric system.
In no field of science is the gulf between appreciation and importance as wide as it is for metrology.
It’s not about the weather. Metrology is the science of measuring. It has a longer history than the modern sciences taught in school, and it’s essential to all of science’s usefulness and power. Without sound metrology, there’d be no trips to the moon, no modern medicine, no self-driving cars, no baseball analytics and no decent weather forecasts. (OK, so sometimes it is about the weather.) And even without science, metrology has earned its keep for millennia in the service of trade and commerce, ensuring that weights and volumes of produce and other products could be standardized to make fraud a little harder for the fraudsters.

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