Views: 8563 Author: Site Editor Publish Time: 2024-01-01 Origin: Site
Almost everyone uses weighing scales. Some people check their weight daily for health and exercise purposes, while others use more scales in supermarkets, workplaces, or as part of comprehensive science education.
Here is the content list:
The definition of weight and mass
A brief history of weighing machines
Types of scales
Quality is a measure of the substance itself, that is, the amount of "substance" present in the sample. One way to think about quality is that it has an internal structure. This means that if you are not moving, you need to add energy to the system to make it move, but if you are already moving, you need to add energy to slow it down or stop it completely. Intuitively speaking, the heavier the mass of an object, the more difficult it is to start moving from a static state or stop moving while it is in motion.
Weight is mass multiplied by g, which is the acceleration due to gravity. On the earth, the commonly used g value is 9.8 meters per second squared (m/s2), but on the moon, it is quite small, and on Jupiter, it is much larger because the mass of these objects is smaller than that on the earth Much. Therefore, when placed in a stronger or weaker gravitational field, the same mass has a different weight.
It is said that Gottfried William Leibniz (1646-1716), who co-invented the field of calculus with Isaac Newton, is also believed to have designed the first weighing scale. His structure is very similar to the usual Libra. A vertical pillar, the top of which is fixed with a horizontal rod through a movable joint. From the end of this horizontal bar, we suspended two boards with relative mass enough to balance the components.
The first pendulum weighing scale appeared in the mid-1750s. As engineering development improves manufacturing accuracy, these become more complex over time.
The beam balance is not part of modern science or business like Pony Express, and the reason is probably already obvious. But without this old-fashioned machine, modern scales would not have been born. The latest weighing scales samples:
Analytical balance: This is likely to be seen in the laboratory. Simply place the object on the board above the unit and it will return the mass (or, if the user prefers, the "mass" expressed in imperial units, such as ounces or pounds). Their construction allows the plates to stand still only under the influence of gravity, and the machine internally determines the force required to place the plates accurately to counteract this.
Scale: Due to technological progress, the model is no longer close to the definition of a unified weighing scale. Most of the time today is digital, but "old-fashioned" analog models still exist.
Count Scale: Used to weigh multiple objects (for example, precision ball bearings) that are known to have a uniform weight and display the total number of pieces based on the result.
If you have any questions about scales, please contact our company. Easton Hotel Supplies Co., Ltd. has developed a variety of different weighing scales.
