Etymologically this term is derived from the Latin “Bilanx” where “bi” it means “two” Y “lanx” it means “plate or saucer”. This word refers to a device that is used to calculate the weight of objects. Formerly the image of a scale was like a kind of metal rod that has two pans at its ends that are compensated when both are balanced. The main function of balances is to be able to determine the weight of objects or substances. In scientific laboratories, the use of balances is common, since quality control tasks can be executed through them.

The scales have different designs, there are mechanical and electronic scales. Mechanical balances are those that are used in laboratories for their research work, likewise this type of balance can be seen in those schools where chemistry classes are taught. Due to their precision in weight, they are the most suitable when carrying out scientific research, since they can provide exact data when making measurements of substances.

Electronic scales are much more modern and are the most used today, especially in the commercial area, they can be seen in any auto market, bakery, butcher, etc. This type of scales is designed with sensors that determine the weight of the object that is placed on them, these scales, if they are well calibrated, will give totally accurate data, becoming a very useful device for people who are dedicated to commerce.

On the other hand is what is the trade balance, which is in charge of supervising or checking the monetary disparity that originates in the exports or imports of a country. she will determine if exports were greater than imports or vice versa, which will have a positive or negative impact on the country’s economy.

In the area of ​​law, you can see the image of a balance that represents the legal emblem and that symbolizes the accuracy of the evidence and testimony that have been exposed in order to impart justice in a balanced manner.