Etymologically, this term is derived from the Latin “Bilanx”, where “bi” means “two” and “lanx” means “plate or saucer”. This word refers to a device that is used to calculate the weight of objects. In the old days, the image of a scale was like a kind of metal bar that has two disks at its ends that compensate when the two are balanced. The main function of the scales is to be able to determine the weight of objects or substances, in scientific laboratories the use of scales is common since through them quality control tasks can be carried out.
The scales have different designs, there are mechanical and electronic scales. Mechanical balances are those that are used in laboratories for their research work, in the same way this type of balance can be seen in schools where chemistry classes are taught. Due to the precision of their weight, they are the most suitable for scientific research, since they can provide accurate data in the measurement of substances.
Electronic scales are much more modern and are the most used today, mainly in the commercial field, and can be seen in any car market, bakery, butcher, etc. This type of scale is designed with sensors that determine the weight of the object that is placed on it, these scales, if well calibrated, will give totally accurate data, making it a very useful device for those who are dedicated to commerce.
On the other hand, this is what the trade balance is, which is responsible for supervising or controlling the monetary disparity that originates in the exports or imports of a country. It will determine whether exports were greater than imports or vice versa, which will have a positive or negative impact on the country’s economy.
In the right area you can see the image of a scale that represents the legal emblem and symbolizes the veracity of the evidence and testimonies that were exposed to do justice in a balanced manner.
Coulomb law
Density
Weight
