Science 2024, November

Good afternoon! Today in our article we will tell you about what experiments can be done with an egg using vinegar. You will learn about the various properties of chicken eggs

Thomas Alva Edison (photo below) is an American inventor who has registered a record 1093 patents. He also created the first industrial research laboratory

The doctrine of evolution causes a lot of controversy. Some believe that God created the world. Others argue with them, saying that Darwin was right. They cite numerous paleontological evidence for evolution, which most convincingly supports his theory

There are a lot of amazing and truly beautiful things in the world, something was created by nature, something by man. We will talk about the most beautiful and memorable chemical reactions known all over the world and interesting even for schoolchildren

Who formulated the golden rule of didactics and presented it to the general public? What is its essence? What is it for? How should existing knowledge be used? These, as well as a number of other questions, will be considered in the framework of this article

It's easy to explain what litmus is - a chemical substance of natural origin, which determines the acid-base level of water or solution. Litmus turns red when exposed to an acidic environment, blue when exposed to an alkaline environment, and purple when exposed to a neutral environment. This is the most common indicator that is used in industry and can be useful at home

In our country, oil is the main natural resource on which the entire Russian economy is currently based. But there are interesting facts about oil that you most likely do not even know. It is about them that we will tell you in detail in this article

Raven is a constellation in the southern hemisphere of the sky. It occupies a fairly small area and is significantly inferior in brightness to some of its neighbors

The functionalist perspective, also called functionalism, is one of the main theoretical perspectives in sociology. It has its origins in the work of Émile Durkheim, who was particularly interested in how social order is possible or how a society remains relatively stable

The laws of heredity have attracted human attention since the time when it first became clear that genetics is something more material than some higher powers. Modern man knows that organisms have the ability to reproduce similar to themselves, while the offspring receive specific features and characteristics inherent in their parents. Reproduction is implemented due to the ability to transfer genetic information between generations

Soviet Academician Nikolai Antonovich Dollezhal is a key figure in the USSR project to create an atomic bomb. In addition, he was the chief designer of the RBMK and nuclear power reactors, which are still in operation today. The professor lived a life of more than a hundred years and devoted it all to science

Phytoplankton are many species of autotrophic (self-feeding) members of the plankton community and are a key part of the oceans, seas and freshwater ecosystems. The name comes from the Greek words φυτόν (phyton) meaning "plant" and πλαγκτός (planktos) meaning "wanderer" or "drifting"

Shelford's law of tolerance - the law according to which the limiting factor of prosperity can be both a minimum and a maximum of an environmental factor, the range between which determines the amount of tolerance (endurance) of an organism to this factor

A cone is one of the spatial figures of rotation, the characteristics and properties of which are studied by stereometry. In this article, we will define this figure and consider the basic formulas that relate the linear parameters of a cone to its surface area and volume

The materialistic theory of the origin of the state is based on building in the minds of the people of the ancient world a model of primitive government and domination. Starting from tribes and communities, people united in large groups, this required the organization of their lives and the orderliness of their actions and forces. The formation of statehood and the concept of a legal system originates from the time of the growth of a person’s personality, the definition of his desires and needs

RDX is an organic compound with the formula (O2NNCH2) 3. It is an odorless or tasteless white solid widely used as an explosive. Chemically, it is classified as a nitramide, chemically similar to HMX. A more energetic explosive than TNT, it was widely used in World War II and remains common in military applications

Know what are the most important environmental consequences of global atmospheric pollution, should any modern person. The responsibility of scientists, ecologists, and industrialists is especially great, but ordinary people should also be guided in this matter. In many ways, public awareness creates pressure on industrial enterprises, forcing them to be more responsible in organizing work and reducing emissions

Ever since humanity took to the air, aircraft have been built with great enthusiasm and imagination. Some of them reached such amazing and unusual forms that they did not fit into any canons and, it would seem, violated the laws of aerodynamics. You will learn about such devices from this article

Solid material represents one of the four states of aggregation in which the matter around us can be. In this article, we will consider what mechanical properties are inherent in solids, taking into account the features of their internal structure

To keep your hair looking great and he althy, it needs the right care. And in order to properly care for and not damage, you need to know what hair consists of

Every summer we are accustomed to watching an amazing meteor shower. In August, this meteor shower does not occur by chance, but according to its usual schedule

The question of whether animals and humans need mineral s alts is always asked to all students in the fifth grade, in a biology lesson. After all, they should know that the body of any living being, in addition to the well-known elements such as fats, proteins and carbohydrates, must contain a variety of minerals. Otherwise, various diseases dangerous for the human body may occur

At the beginning of the study of biology, many students are asked the question: "What makes the body of a flatworm move?" Naturally, most of them cannot even give the correct answer to this difficult riddle

Analysis of the structure of proteins, features of their structure. Proteins as biological polymers. Monomers of proteins and polypeptides, amino acids. The concept of a peptide bond, the stages of protein biosynthesis, its functions in an animal cell

The gravimetric method of analysis allows you to determine the quantitative content of ions and elements in the analyzed substance. Consider its features

Regarding the theory of the origin of oil, scientists have not come to a consensus. This is a very complex issue, and neither the geology of gas and oil, nor the entire natural science that is currently available to mankind can solve the problem of its solution. Not only theorists, but also practitioners talk about the origin of oil

The article talks about what gravity is, what gravity is on other planets, why it occurs, what it is for, and also its impact on various organisms

Melting point is an important characteristic that is most often applied specifically to metals. It depends on many physical properties of substances - their purity and crystal structure. What metal is the most fusible: Li, Al, Hg, Cu? Let's find out which of them can really be called such

Yamal black hole - this is how the mysterious funnel that suddenly appeared in the north of the Yamal Peninsula was dubbed. She surprised scientists with the great depth and incredibly smooth edges of the failure, sheerly descending into the bowels of the earth. On the one hand, the hole resembles a karst formation, on the other - the epicenter of the explosion. Over the mystery of the anomaly, scientists have been fighting for several years

Interpolation is a way of calculating intermediate values of quantities from an available discrete set of values. The most common interpolation methods are: inverse distance weighting, trend surfaces and kriging

General Designer Yuri Solomonov is known as one of the most experienced and brightest specialists in his field. Today he works at the Moscow Institute of Thermal Engineering

Marginalization is a natural process. Some see it as negative. But that's not the case at all. Moreover, marginalization can also be positive. After all, it is a powerful stimulus to human development. Many famous personalities were marginalized. If a person really wants something, then sooner or later he will definitely achieve it

Algae are the most ancient group of plants on the planet. One of the representatives of this systematic unit is ulotrix. Reproduction, habitat and life processes of this plant are the subject of study of our article

Already in the IV millennium BC, mankind learned about the existence of tin in nature. At all times, this metal was very expensive due to its inaccessibility. In this regard, references to it are rarely found in ancient Greek and Roman written sources

The chemical composition of bones includes a number of chemical elements and organic substances, to a greater extent these are calcium s alts and collagen, as well as others, the percentage of which is much less, but their role is no less significant

The concept as a form of thinking is one of the most important topics of science in the field of logic. The following article will provide the necessary information on this issue. This material can also be useful in preparing for the exam in general psychology, while studying the question of thinking

Let's consider the anthropological approach in education. it allows you to fully fulfill the social order of society

The nucleus consists of protons and neutrons, and electrons move around the nucleus. In Bohr's model, electrons revolve around the nucleus in circular orbits, like the Earth revolving around the Sun. Electrons can move between these levels, and when they do, they either absorb a photon or emit a photon. What is the size of a proton and what is it?

When the words "chameleon" or "octopus" immediately arises an association with bright colors that change each other. Green foliage and grass, multi-colored flowers and fruits, a variety of colors of aquarium fish and amazing coloring of animals. All this is the world that surrounds us. Living organisms owe this multicolor to special cellular structures - chromatophores. What are these strange formations, what is their function and how do they work - this article is about this

Exploring the planets is a fun activity. We still know so little about the universe that in many cases we can talk not about facts, but only about hypotheses. Planetary exploration is an area where major discoveries are yet to come. However, something can still be said. After all, scientific research on the planets of the solar system has been going on for several centuries