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. Formerly the image of a balance was like a kind of metal rod that has two saucers at its ends that compensate 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 through it, quality control tasks can be executed.
The scales have different designs, there are mechanical and electronic scales. Mechanical scales are those that are used in laboratories for their research work, likewise this type of scales can be seen in those schools where chemistry classes are taught. Due to their precision in weight, they are the most appropriate when carrying out scientific research, since they can provide accurate data when measuring substances.
The electronic scales are much more modern and are the most commonly used today especially in the commercial area, 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 trade.
On the other hand, there 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. It 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 scale that represents the legal emblem and that symbolizes the accuracy of the evidence and testimonies that have been exposed in order to deliver justice in a balanced way.
