In the article we will talk about Srinivasa Ramanujan, a famous mathematician from India. This man did a lot for this science, and besides, he is interesting for his biography. Everything you wanted to know about this man, read the article below. Last modified: 2025-01-23 12:01
Science
How to prepare a bleach stock solution for disinfection. The ratio of components and the rules for preparing compositions. Features of bleach and its disadvantages. Preparation procedure and safety precautions for use. Last modified: 2025-01-23 12:01
Collagen fibers play an important role in the human body. They are responsible not only for the elasticity of the skin, but also support the structure of internal organs. Today, collagen is also actively used in cosmetology. As a result, the skin looks younger and more attractive. In our article you can find more detailed information about collagen fibers and their functions. Last modified: 2025-01-23 12:01
Biology is a term used to describe a whole system of sciences. It generally studies living beings, as well as their interaction with the outside world. Biology explores absolutely all aspects of the life of any living organism, including its origin, reproduction and growth. Last modified: 2025-01-23 12:01
Portuguese Prince Enrique the Navigator made many geographical discoveries, although he himself went to sea only three times. He marked the beginning of the era of great geographical discoveries and significantly improved the position of Portugal. Last modified: 2025-01-23 12:01
Memory is one of the most important terms in psychology. We use this concept very often in everyday life. Memory in psychology is called mnemonic activity. This name has an interesting origin - after the name of the mother of the nine muses and the goddess of memory Mnemosyne. Last modified: 2025-01-23 12:01
The full name of the educational institution is National Research University Higher School of Economics, abbreviated as NRU HSE. The unofficial name is the result of student folk art - "Tower". This university is in the top 5 best universities in the country and is rightly considered the most progressive and prestigious among the capital's institutions. Last modified: 2025-01-23 12:01
Most of us are far from science and understand little about it, but does this prevent us from learning interesting scientific facts about the world that surrounds us? A lot of interesting, funny and amazing is hidden from our eyes. Last modified: 2025-01-23 12:01
What is thermodynamics? This is a branch of physics that deals with the study of the properties of macroscopic systems. At the same time, methods of converting energy and methods of its transfer also fall under the study. Last modified: 2025-01-23 12:01
In this article we will pay attention to the concept of "social engineering". A general definition of the term will be considered here. We will also learn about who was the founder of this concept. Let's talk separately about the main methods of social engineering that attackers use. Last modified: 2025-01-23 12:01
Computers have opened up new horizons for recursion, but the classical consciousness of a qualified developer is not in all cases ready to realize them. Object-oriented ideas came to the world of information processing twice, but the first time information processing did not yet have hardware support, and the second time programming had already managed to burden itself with the classics of the genre. Last modified: 2025-01-23 12:01
When preparing for the exam in mathematics, students have to systematize their knowledge of algebra and geometry. I would like to combine all the information, for example, how to calculate the area of a pyramid. Moreover, starting from the base and side faces to the area of the entire surface. Last modified: 2025-01-23 12:01
Almost all Soviet people remember how the government in the 1980s frightened citizens with a terrible new weapon invented by "decaying capitalism". Political informants in institutions and teachers at school in the most terrible colors described the danger to all living things that the neutron bomb, adopted by the United States, poses. Last modified: 2025-01-23 12:01
The bottom (diaphragm) of the oral cavity is formed by many muscles located between the tongue and the hyoid bone. The structure of its mucous membrane is characterized by a high development of the submucosa, which includes fatty and loose connective tissues. Last modified: 2025-01-23 12:01
The first principle of the laser, whose physics was based on Planck's law of radiation, was theoretically substantiated by Einstein in 1917. He described absorption, spontaneous and stimulated electromagnetic radiation using probability coefficients (Einstein coefficients). Last modified: 2025-01-23 12:01
In the night sky in clear weather, you can see many small luminous lights - stars. In fact, their sizes can be huge and hundreds or even thousands of times larger than the size of the Earth. They can exist separately, but sometimes form a star cluster. Last modified: 2025-01-23 12:01
For their calculations, astronomers use special units of measurement that are not always clear to ordinary people. It is understandable, because if cosmic distances were measured in kilometers, then the number of zeros would ripple in the eyes. Therefore, to measure cosmic distances, it is customary to use much larger quantities: an astronomical unit, a light year, and a parsec. Last modified: 2025-01-23 12:01
The object of numerous scientific studies and esoteric teachings, the inspirer of poets and romantics - all this is the full moon. Photos of the night star illustrate articles about space achievements and discoveries and at the same time about magic and superstitions. What is the full moon from the point of view of astronomy, what superstitions are associated with it and what are the results of studies that verify them - this will be discussed in the article. Last modified: 2025-01-23 12:01
What is a fish heart? Our article is devoted to this topic, in which we will tell you how many chambers a fish heart has and what function it performs. Last modified: 2025-01-23 12:01
In a special section of physics - dynamics, when they study the movement of bodies, they consider the forces acting on the moving system. The latter can perform both positive and negative work. In this article, we will consider what the work of the friction force is and how it is calculated. Last modified: 2025-01-23 12:01
"Chlorhexidine" - what is it? The question is quite common, and today we will talk about this medical preparation. Last modified: 2025-01-23 12:01
The map of the starry sky is an incredibly attractive and fascinating sight, especially if it is a dark night sky. Against the backdrop of the Milky Way stretching along a hazy road, both bright and slightly hazy stars that make up various constellations are perfectly visible. One of these constellations, located almost entirely in the Milky Way, is the constellation Perseus. Last modified: 2025-01-23 12:01
Substance CS: history of its discovery, physical and chemical properties. Impact on the human body. The use of the compound for military-political purposes. Environmental impact. Necessary measures in case of poisoning with chlorobenzalmalononitrile. Last modified: 2025-01-23 12:01
Man has always dreamed of flying in the sky. Remember the story of Icarus and his son? This, of course, is just a myth and we will never know how it really happened, but this story fully reveals the thirst to soar in the sky. Last modified: 2025-01-23 12:01
A beautiful feeling that drives people to do crazy things. Because of him, a lot happened in the history of mankind, up to the fact that wars were unleashed between countries. It would seem that a completely unearthly feeling that makes people flutter like butterflies, ex alts them to heaven, giving a feeling of happiness and extraordinary joy. But there was a look at love from the point of view of chemistry. Last modified: 2025-01-23 12:01
Earth's crust - a solid layer of the planet, located outside of the hot "insides" of the Earth, on which we are used to walking, traveling and living in general. The thickness of the earth's crust, compared with the other two layers of the earth, is negligible, but nevertheless it is possible to characterize what large elements the earth's crust consists of, as well as understand its composition. Last modified: 2025-01-23 12:01
In order to be able to depict on paper objects that in reality do not have very “convenient” sizes, people came up with a scale. In fact, this explains why the scale is needed. Last modified: 2025-01-23 12:01
Which water freezes faster, hot or cold, is influenced by many factors, but the question itself seems a little strange. It is understood, and it is known from physics, that hot water still needs time to cool down to the temperature of comparable cold water in order to turn into ice. Cold water can skip this stage, and, accordingly, it wins in time. Last modified: 2025-01-23 12:01
What is the actual origin of the moon? Hypotheses that allow at least somehow approaching this answer are both scientific in nature and are simply fantastic assumptions. Last modified: 2025-01-23 12:01
Who was not interested in space exploration as a child? Yuri Gagarin, Sergei Korolev, Valentina Tereshkova, German Titov - these names make us think of distant and mysterious stars. By opening the page with this article, you will plunge into the world of exciting space adventures again. Last modified: 2025-01-23 12:01
Moon seas on the Moon have nothing to do with what we understand the word "sea" means, they are waterless. So what are the seas on the moon? Who gave them such interesting names? The lunar seas are dark, even and rather large areas of the lunar surface visible to us from the Earth, a kind of pits. Last modified: 2025-01-23 12:01
For the Soviet Union, the launch of the first artificial satellite was not only a scientific victory. The Cold War between the USSR and the USA unfolded not least in outer space. For many Americans, convinced that the Soviet Union was a backward agrarian power, it was an unpleasant surprise that the first satellite was launched by the Russians. Last modified: 2025-01-23 12:01
Why are flights to the moon stopped? There was no answer to this question for many years. But the study of the satellite of our planet was carried out quite successfully. More than one expedition has landed on the surface of the moon. What happened? Why did two states suddenly stop all developments in this direction, while closing projects and suffering heavy losses. Last modified: 2025-01-23 12:01
Auger drilling is very widespread, is a universal method used for drilling shallow holes in soft or unconsolidated rocks. This method is convenient for performing work in pebble rocks. It is also widely used in seismic. Last modified: 2025-01-23 12:01
In the article we will talk about the Hi-Tech Park. Few people know what it is, so we will tell you in detail about this economic zone, which is located in Belarus. Last modified: 2025-01-23 12:01
Dedicating his life to the study of wildlife, Ernst Haeckel made many discoveries and made a great contribution to science. Read more about the scientific activity of the scientist in the article below. Last modified: 2025-01-23 12:01
Rock-forming minerals are the fundamental components of the rocks that make up the Earth's shell. They are divided into many groups and types. Last modified: 2025-01-23 12:01
For the most part, a rock-forming mineral is one of the main components of the earth's crust - rocks. The most common are quartz, micas, feldspars, amphiboles, olivine, pyroxenes, and others. Meteorites and lunar rocks are also referred to them. Last modified: 2025-01-23 12:01
The pelvic region includes the pelvic bones, sacrum, coccyx, pubic symphysis, as well as ligaments, joints and membranes. Some authors also include the area of the buttocks. The article discusses the anatomy of the pelvis: the skeletal system, muscles, genital and excretory organs. Last modified: 2025-01-23 12:01
There are many different types of emotions that affect how an individual lives and interacts with other people. The choices a person makes, the actions they take, and the perception of the environment all depend on them. The sense organs also play a special role in perception. It is thanks to them that a person receives information from the outside world. Based on the manifestations and functions, a classification of emotions and feelings is carried out. Last modified: 2025-01-23 12:01