1. Historical overview
Reminder
A scale always measures a weight, which is the resultant force of a mass.
The same mass can have different weights depending on :
its density in relation to that of the surrounding fluid (temperature, pressure, humidity, etc.);
in relation to gravity: p = mg.
The scale only delivers a mass indication after calibration.
In this article, for the sake of readability, we'll only talk about variations in mass. It's a good idea to have a clear understanding of the differences between weight and mass.
Weighing, which consists in comparing the mass of an object with the mass of a reference body, dates back to ancient times. Initially used by merchants, in the 18th century the balance became a tool for chemists.
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Historical overview
TG applications
Bibliography
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