One of the essential parts of every person's life is sleep. This is the time when we restore our strength, relax, and also rest both physically and emotionally. Last modified: 2025-01-23 12:01
Science
Types of science differ from each other depending on which side of reality, the material form they explore. Last modified: 2025-01-23 12:01
Comprehensive analysis allows you to assess the current solvency of the organization and its activities. This, in turn, helps owners, investors and lenders to correctly assess the existing potential. Last modified: 2025-01-23 12:01
Mammals are animals that feed their young with milk. They are the most highly organized. The excretory, reproductive, digestive, respiratory and circulatory systems of mammals are the most complex in comparison with representatives of other systematic units. But special attention should be paid to the structure of the digestive system. Last modified: 2025-01-23 12:01
Recently, science has become known for certain what a black hole is. But as soon as scientists figured out this phenomenon of the Universe, a new, much more complex and confusing one fell on them: a supermassive black hole, which you can’t even call black, but rather dazzling white. Last modified: 2025-01-23 12:01
Nebulae in space are one of the wonders of the universe, striking in their beauty. They are valuable not only visual appeal. The study of nebulae helps scientists clarify the laws of the functioning of the cosmos and its objects, correct theories about the development of the Universe and the life cycle of stars. Today we know a lot about these objects, but not everything. Last modified: 2025-01-23 12:01
The moon is a satellite of our planet, attracting the eyes of scientists and just curious people from time immemorial. In the ancient world, both astrologers and astronomers devoted impressive treatises to her. The poets did not lag behind them. Today, little has changed in this sense: the orbit of the Moon, the features of its surface and interior are carefully studied by astronomers. The compilers of horoscopes also do not take their eyes off her. Last modified: 2025-01-23 12:01
Philosophy has many sections in accordance with the way in which it considers a particular phenomenon. Gnoseology is an important branch of philosophical knowledge that answers the question of how we can know these phenomena, and what are the criteria for the truth of this knowledge. Last modified: 2025-01-23 12:01
In January 1900, the American ethnologist, anthropologist and culturologist Leslie White was born in Colorado. It was he who introduced the term "culturology", which designated a separate independent discipline. Last modified: 2025-01-23 12:01
The pragmatist approach broke the traditional understanding of truth, because it believed that the veracity of any theory lies in its "capacity for work", that is, in how good it is in personal experience. But the most popular was the philosophy of science and technology, which put at the forefront the global problems generated by the scientific and technological revolution. The stumbling block between different schools of thought has become the humanities. Last modified: 2025-01-23 12:01
The spinal cord enters the central nervous system. In the human body, he is responsible for motor reflexes and the transmission of nerve impulses between organs and the brain. The membranes of the spinal cord cover it, providing protection. What features and differences do they have?. Last modified: 2025-01-23 12:01
The Republic of Dagestan, which is part of the Russian Federation, is called a unique constellation of nationalities. There is no dominant people here. And in total, more than a hundred different nationalities live on the territory of a relatively small republic. Last modified: 2025-01-23 12:01
Who is an academician? Is it a title or position? What needs to be done to be called an academician? Academies in Russia and in the world. Last modified: 2025-01-23 12:01
The history of trigonometry is inextricably linked with astronomy, because it was to solve the problems of this science that ancient scientists began to study the ratios of various quantities in a triangle. Last modified: 2025-01-23 12:01
A right triangle is a unique and very interesting figure. Studying the properties of a right triangle is useful not only for scientific purposes, but also in everyday life. Last modified: 2025-01-23 12:01
The Fresnel lens is the light that saves lives. It became a major step in equipping lighthouses, the main navigational aids of their time, with powerful light sources. What is the secret of the special features of the Fresnel lens? What is the scope of these unsurpassed technical devices?. Last modified: 2025-01-23 12:01
Human thought can go so far that it is hard to imagine. The most unexpected discoveries and inventions can completely change the world, turn it upside down, affect every person on the planet. We will consider the most interesting inventions in this article. Last modified: 2025-01-23 12:01
Thermodynamic parameters of the system are necessary to describe the substances that make it up, as well as to identify the potential of the system itself. These parameters are not always unambiguous and are often interpreted quite broadly, as this is the product of the interaction of scientists from different fields of science. Last modified: 2025-01-23 12:01
Radiation units are needed in order to be able to calculate how much energy was absorbed by living or non-living matter during contact with radiation. There are about a dozen different units and their derivatives that describe physical processes. Last modified: 2025-01-23 12:01
The classical stage in the development of science is one of the most important eras in history. It falls on the 17th-19th centuries. This is the era of the greatest discoveries and inventions. Largely due to the achievements of scientists, it is considered as a classic stage of science. Last modified: 2025-01-23 12:01
Soap formula, chemical basis of structure and production methods. Classification of soap, history of soap making. Do-it-yourself making at home. Last modified: 2025-01-23 12:01
A feature of double s alts is that they contain two metals at once. Let us analyze the main characteristics of such compounds and their areas of application. Last modified: 2025-01-23 12:01
Plants consist of organs such as vegetative and reproductive. Each of them is responsible for certain functions. Vegetative - for development and nutrition, and the reproductive organs of plants are involved in reproduction. These include flower, seed and fruit. They are responsible for the "birth" of offspring. Last modified: 2025-01-23 12:01
The root performs the most important functions in the plant body. The main ones are fixation in the soil, absorption and conduction of water with substances dissolved in it, as well as vegetative propagation. The possibility of implementing these processes is associated with structural features of various root systems. Last modified: 2025-01-23 12:01
The article is devoted to the granulometric composition of the soil. Various research methods, classification of compositions, etc. are considered. Last modified: 2025-01-23 12:01
The primary body cavity of a roundworm is also called a pseudocoel. She does not have her own epithelial layer, and she looks like a through hole between the muscle mass and the common intestine. All major organs and systems are located in this space. Here is the center of the vital activity of the organism and the entire existence of the nematode. Last modified: 2025-06-01 07:06
What is scale? What is scaling precision? What is graphic fidelity? Communication of these concepts. The use of scale in cartography, design and geodesy, its varieties. Application in photography, design, filming, programming and modeling. Last modified: 2025-01-23 12:01
Many chemical elements have several oxides. And one of them is nitrogen. Today's article will look at five classic nitrogen oxides. Last modified: 2025-01-23 12:01
Thanks to the spinal nerves, the spinal cord transmits information about the state of the internal and external environment to the brain and vice versa. There is a close connection between the central and peripheral nervous systems, which ensures the work of the whole organism as a whole. Last modified: 2025-01-23 12:01
Oxygen is present in the atmosphere in three allotropic forms: O2 - molecular, O - atomic and O3 - the formula of ozone, which is obtained by chemically combining the first two. Last modified: 2025-01-23 12:01
Consider deformations: shear, tension, bending, torsion. Let's analyze their use in the modern world. Last modified: 2025-01-23 12:01
Kinetic energy is, according to the definition, a value equal to half the mass of a moving body, multiplied by the square of the speed of this body. This is one of the most important terms in modern mechanics. In short, this is the energy of motion, or the difference between the total energy and the rest energy. Last modified: 2025-01-23 12:01
In the process of a chemical reaction, what is theoretically planned is not always obtained, at least quantitatively. This is usually due to difficult reaction conditions - non-ideal temperature, insufficient contact with the catalyst, and simply chemical impurity of the reagents. In this case, chemists use the phrase "mass fraction of the yield". Last modified: 2025-01-23 12:01
In modern inorganic chemistry, the classification of s alts, the interaction and properties of elements and their various compounds are of great importance. There are substances that, among others, occupy special places. Such compounds, in particular, should include calcium sulfate. The formula of the substance CaSO4. Last modified: 2025-01-23 12:01
Surely you have heard more than once from various media about the expected magnetic storms. Did you know that it is sunspots, the nature of which has long been a great mystery to humans, that are responsible for this phenomenon? What is it, and how do they arise?. Last modified: 2025-01-23 12:01
Since childhood, we have known potassium permanganate under a different name, associated with gastric lavage and the terrible word "disinfection". Ordinary potassium permanganate, charming with its "glamorous" color. But how does such a color arise - after all, one small black grain is added to the water ?. Last modified: 2025-01-23 12:01
The influence of Marxism on sociology in the 20th century was very great. Karl Marx sought to create a strictly objective theory of social development based on historical facts. Surely he succeeded. Last modified: 2025-01-23 12:01
Science is a system of knowledge that is in continuous development. It explores the objective laws of nature, thinking, formation and activity of society. Knowledge turns into direct production resources. Last modified: 2025-01-23 12:01
To study the mechanisms of the market system and test the validity of the theories put forward, an economic experiment is used, which in modern realities can be carried out not only on a limited scale. It allows you to obtain information about the typical behavior of economic agents under control. Last modified: 2025-01-23 12:01
What is the scripting method? Note that it can be used to assess the likely course of development of certain events, as well as to foresee the consequences of decisions made. For example, it is possible to predict the feasibility of opening a children's entertainment center, calculate profits, and foresee possible losses. Last modified: 2025-01-23 12:01