Education, self-education and personal growth - methods, lessons

Pascal's law for liquids and gases says that pressure, propagating in a substance, does not change its strength and is transmitted in all directions equally. Liquid and gaseous substances behave under pressure with some differences. The difference is due to the behavior of particles and the weight of gases and liquids. In the article we will consider all this in detail with the help of visual experiments

Pressure is a physical quantity that is calculated as follows: divide the pressure force by the area on which this force acts. The force of pressure is determined by the weight. Any physical object exerts pressure because it has at least some weight. The article will discuss in detail the pressure in gases. Examples will illustrate what it depends on and how it changes

The words "aviation" and "aeronautics" until the 20s. 20th century were synonyms. Everything changed at the beginning of the last century. Aeronautics began to be called movement with the help of devices that are lighter than air, and aviation - flying on airplanes. That is, ships that are heavier than air. In the article we will consider in detail the history of aeronautics, the physics of the process

The bugbear is a lock-picker. He can do this both legally and for the purpose of profit, that is, robbing apartments. Another such word in Russia was called a bear hunter, as well as a wandering jester with a tame animal. Consider all the meanings of the word "bear cub" in more detail