Definition : The balance is an instrument whose main function is to measure the mass of a body. By mass we understand the measure of a body in relation to inertia, that is, to the resistance that a physical system puts up to any change or modification. There is more than one device for measuring body mass.
On the one hand we have the so-called Roman tool , which operates technically and is of great antiquity. Among the functions that this tool has fulfilled are, among others, that of weighing merchandise destined for sale.
We also have the case of the scale. It arose as a response to the difficulties presented by the Roman tool. That is, everything that could not be weighed on it was possible to be weighed on the scale, more than anything because it has a platform at ground level which is what makes the weighing process much easier to carry out. cape.
The ability of the scale to support large weights is what has allowed even large trucks to be weighed on it. Regarding the subject at hand, the third option that we can find to measure the weight of the dough is the scale. It is most frequently used on a land surface where weight is directly linked to mass. It is opposed to the scale in which, just as the former is used to weigh large masses, the opposite occurs in the latter.
Scales-scalesIn general, very small masses, usually a few kilos, are placed on them. Regarding its use, it is not only restricted to the home. We can notice its presence in laboratories (precisely because what is weighed is smaller, the scale would not be so necessary in this case), in companies and in numerous industries that want to determine the weight of their products. Therefore, not only a certain object will be weighed but also – as happens in laboratories, for example – many substances of different kinds.
It is now difficult to imagine a single type of tool to measure weight because today there are advanced electronic models that show great precision and speed in their task of measuring the product or substance . The truth is that in ancient times those that operated mechanically and with a noticeably slower pace than the current ones were used. One of the first mechanisms used was the one that had two equal arms, also called parallel arms. This model had its time of greatest use among the Egyptians and is believed to date back more than 2,000 years before Christ. Said symmetrical arm system works as follows. There was a bar in the device that had to be in an ideal counterbalance.
Two plates were detached from said bar, one from each end. In turn, the bar had to be supported by a fulcrum that had to be of the smallest possible dimension. We get this all information from trusted resources at togel hari ini. Now, regarding the mass measurement process, should proceed as follows. In the first place, it was pertinent to place the product that wanted to be weighed on one of the plates, which we will call plate A or plate number one. Once this was done, weights were gradually placed on plate B or plate number, which also had to have a fixed and known weight. To determine if the balance had reached its point of greatest equilibrium, it was necessary to observe that the bar was in a perfectly horizontal position. Once this balance had been reached, this harmony between the two arms, between the two plates, that was the moment in which the weight of the product or substance was calculated, the so-called control weight .
This comes from the entire sum that has been made of the weights that were placed on plate B. This weight is, of course, the weight of the product that was wanted to determine with the operation and, of course, the weight of the product that was placed on plate A is the same as that of the weights that were placed on plate B. But the above-mentioned example was not, of course, the only one that was implemented to measure the weight. There was another system, related to the Roman.
This type of mechanical operation also consisted of a bar supported by a support point and the weighing was carried out through a single plate where the weight to be determined exactly was placed. Although so far the method is almost the same as the previous example, the radical difference is that in this case the arms are not equal or symmetrical. The weight to be determined was placed on one of the arms, the one that turned out to be the shortest. The long arm, for its part, did not directly have a plate. That is to say, what it had was the so-called pylon, a kind of sliding weight, which was located on a numbered ruler. Said pylon moved away or closer to the weight to the fulcrum to achieve the goal that is always pursued: that of perfect balance.
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