Science

The pressure of light. The nature of light is physics. Light pressure - formula

Today we will devote a conversation to such a phenomenon as light pressure. Consider the prerequisites for discovery and consequences for science. Last modified: 2025-06-01 07:06

What unusual and interesting inventions has the 21st century given us?

The 21st century brought with it new technologies and the ability to make extraordinary inventions. The beginning of the century has already brought novelties, and ahead of mankind there are still a lot of new discoveries and inventions. Last modified: 2025-01-23 12:01

Power units. Current power: unit

Power in physics is understood as the ratio of the work done in a certain time to the time interval for which it is performed. Under the mechanical work is meant the quantitative component of the impact of force on the body, due to which the latter moves in space. Last modified: 2025-01-23 12:01

Linus Pauling: biography, contribution to science. Multivitamins Linus Pauling and reviews about them

One of the most famous American chemists is Linus Pauling. His biography is of interest not only to residents of the United States, but also to people around the world. No wonder, because he researched vitamins - dietary supplements so popular today. And I must say, Linus Carl Pauling came up with interesting results. It is about this scientist, who became the winner of two Nobel Prizes, that we will talk about today. Last modified: 2025-01-23 12:01

What is a cluster of galaxies?

The article describes the properties of galaxy clusters, the largest clusters, as well as a nebula of particular interest - Veronica's Hair. Last modified: 2025-01-23 12:01

Rosalind Franklin: biography, years of life, contribution to science. Forgotten Lady DNA

Rosalind Elsie Franklin is a brilliant British chemist whose X-ray studies provided a key insight into the structure of deoxyribonucleic acid and quantitatively validated the Watson-Crick model. She also found that DNA molecules exist in more than one form. Last modified: 2025-01-23 12:01

Constellation Lyra is a small constellation in the northern hemisphere. The star Vega in the constellation Lyra

The constellation Lyra cannot boast of large sizes. However, since ancient times it has been attracting attention due to its favorable location and bright Vega. Several interesting space objects are located here, making Lyra a constellation valuable for astronomy. Last modified: 2025-01-23 12:01

Ufology - what is it?

The term "ufology" is often found in the media today. Its meaning is not always clear to ordinary people. What is ufology? Is it science or an unrecognized craze for groups of people around the world? We will try to find the right answers to these questions. Last modified: 2025-01-23 12:01

Who is a relic animal?

The era of dinosaurs is long gone, and huge lizards can only be found in museums and cinemas. Some representatives of flora and fauna from distant historical times have survived to this day. They are called relics. Last modified: 2025-01-23 12:01

Cave lion - an ancient predator

The cave lion is one of the types of ancient creatures that terrified smaller brothers. Even primitive people tried to avoid its habitats. Last modified: 2025-06-01 07:06

Proxima Centauri. Red dwarfs. Alpha Centauri system

Proxima Centauri is the closest star to Earth. It got its name from the Latin word proxima, which means "nearest". Its distance from the Sun is 4.22 light years. Last modified: 2025-01-23 12:01

The spectrum of solar radiation: description, features and interesting facts

The sun plays an important role for us on Earth. It provides the planet and everything on it with vital factors such as light and heat. But what is solar radiation, the spectrum of sunlight, how does all this affect us and the global climate in general?. Last modified: 2025-01-23 12:01

Parsons' Theory: Main Ideas and Content

Talcott Parsons (1902-1979) occupies a prominent place in the history of sociology. Thanks to the activities of this professor at Harvard University, this discipline was brought to the international level. Parsons created a special style of thinking, which is characterized by the belief in the leading role of scientific knowledge, reduced to building systems and systematizing data. Last modified: 2025-01-23 12:01

Basic laws of mechanics - description, features and formulas

The movement of different bodies in space in physics is studied by a special section - mechanics. The latter, in turn, is divided into kinematics and dynamics. In this article, we will consider the laws of mechanics in physics, focusing on the dynamics of the translational and rotational movement of bodies. Last modified: 2025-01-23 12:01

Moment of inertia. Some details of rigid body mechanics

One of the basic physical principles of the interaction of solid bodies is the law of inertia, formulated by the great Isaac Newton. We encounter this concept almost constantly, since it has an extremely great influence on all material objects of our world, including humans. In turn, such a physical quantity as the moment of inertia is inextricably linked with the law mentioned above, determining the strength and duration of its impact on solid bodies. Last modified: 2025-01-23 12:01

System: definition. System: approaches to defining a system, basic concepts, types of systems

In this article we will consider the definition of a system as a device made up of various structural elements. Here the question of the classification of systems and their characteristics will be touched upon, as well as the formulation of Ashby's law and the concept of a general theory. Last modified: 2025-01-23 12:01

Uniform rectilinear motion: concept and main characteristics

Uniform rectilinear motion is a special type of motion, as a result of which the body performs the same movement in absolutely equal time intervals. Last modified: 2025-06-01 07:06

Fermat's theorem and its role in the development of mathematics

Fermat's Theorem, its riddle and endless search for a solution occupy a unique position in mathematics in many ways. Despite the fact that a simple and elegant solution was never found, this problem served as an impetus for a number of discoveries in the field of the theory of sets and prime numbers. Last modified: 2025-01-23 12:01

Jupiter: diameter, mass, magnetic field

Jupiter, whose diameter stands out from the rest of the planets of the solar system, has been of interest to scientists for many years. In the near future, an interplanetary station is expected to enter the orbit of the planet - perhaps the time has come to get answers to many of our questions. Last modified: 2025-01-23 12:01

Information processes in wildlife. The concept of the information process

Information processes in wildlife are much more common than it might seem at first glance. Last modified: 2025-01-23 12:01

Stratosphere - what is it? Stratosphere height

The stratosphere is one of the upper layers of the air shell of our planet. It starts at an altitude of about 11 km above the ground. Passenger aircraft no longer fly here and clouds rarely form. The Earth's ozone layer is located in the stratosphere - a thin shell that protects the planet from the penetration of harmful ultraviolet radiation. Last modified: 2025-01-23 12:01

Information in inanimate nature: examples

Is there information in inanimate nature, if we do not take into account the various techniques created by man? The answer to this question depends on the definition of the concept itself. Last modified: 2025-01-23 12:01

Earth's upper mantle: composition, temperature, interesting facts

The Earth's mantle is the part of the geosphere located between the crust and the core. It contains a large proportion of the entire substance of the planet. The study of the mantle is important not only in terms of understanding the internal structure of the Earth. It can shed light on the formation of the planet, give access to rare compounds and rocks, help understand the mechanism of earthquakes and the movement of lithospheric plates. However, obtaining information about the composition and features of the mantle is not easy. Last modified: 2025-01-23 12:01

What is a Dyson sphere? Does a Dyson sphere exist or not?

It's hard to say when a person first wondered if he was alone in the universe. But you can determine the time when the search for an answer to this question moved from the pages of science fiction novels to science - the middle of the last century, the beginning of the space age. Last modified: 2025-01-23 12:01

Surface of Venus: area, temperature, description of the planet

The closest planet to us has a very beautiful name, but the surface of Venus makes it clear that in fact there is nothing in her character that would remind of the goddess of love. Sometimes this planet is called the twin sister of the Earth. However, the only thing we have in common is similar sizes. Last modified: 2025-01-23 12:01

What is a solar flare? Consequences and prediction of the phenomenon

The energy of the Sun has an ambiguous effect on our planet. It gives us warmth, but at the same time it can negatively affect people's well-being. One of the reasons for the negative impact is solar flares. How do they happen? What are the consequences?. Last modified: 2025-01-23 12:01

Functions of the cell wall: supporting, transport, protective

The surface apparatus is an integral part of any cell and many of its components. It performs vital functions. How the cell membrane works, the structure and functions of this structure - all this will be discussed in our article. Last modified: 2025-01-23 12:01

Globular bacteria (cocci, micrococci, diplococci): structure, size, mobility

Kingdom of bacteria: structural features of bacterial cells, general information about spherical bacteria, division into species. Features of micrococci, diplococci, streptococci and staphylococci. Last modified: 2025-01-23 12:01

Ecology of the word: definition of the term, problems, features

Time does not stand still and the language is subject to the so-called "clogging". A lot of new, and, in fact, unnecessary borrowed foreign words, jargon and parasitic words have appeared. The issue of ecology has long been of concern to mankind in all its spheres. It is very important to preserve not only the environment, but also the purity of Russian speech, which, like nature, is also littered with unnecessary "garbage". Last modified: 2025-01-23 12:01

What is the vestibular apparatus made of? How is the vestibular apparatus arranged?

The organ of balance is hidden in the inner ear, which constantly registers the position and movement of the human body, helping to maintain balance. How terrible the feeling of losing balance is known to everyone who has suffered seasickness or rode the carousel for too long. The world begins to stagger and spin, and nothing can be done - it remains only to lie down and wait until everything falls into place. Last modified: 2025-01-23 12:01

Pierre Fermat: biography, photo, discoveries in mathematics

Pierre de Fermat is one of the greatest scientists in the history of France. His achievements include the creation of such works as the theory of probability and numbers, he is the author of outstanding theorems and the discoverer of a number of mathematical properties. Last modified: 2025-01-23 12:01

Philological sciences. What does philology study? Russian philologists

Many people perceive the philological sciences as something very vague and abstract. They know that this process is related to the study of languages, but they do not have more detailed information. And only those who graduated from the Faculty of Philology can accurately and fascinatingly reveal all aspects of verbal science. Last modified: 2025-01-23 12:01

John Mill: biography, personal life, achievements

John Stuart Mill (English John Stuart Mill; May 20, 1806, London - May 8, 1873, Avignon, France) was a British philosopher, sociologist, economist and politician. He made a significant contribution to social science, political science and political economy. He made a fundamental contribution to the philosophy of liberalism. Defended the concept of individual freedom as opposed to unlimited government control. Last modified: 2025-06-01 07:06

Genetic programming: opportunities, examples

At the World Youth Festival held in Sochi in October 2017, Russian President Vladimir Putin stunned those present with his statement and proximity to creating a person with given characteristics. Genetic programming and genetic algorithms as a tool for biotechnology are entering the existential path of development. The future has already arrived, and there are many examples of this. The world will enter the era of human genetic programming during our lifetime. Last modified: 2025-01-23 12:01

The emergence and origin of life on Earth: the main hypotheses

If you tabulate the hypotheses of the origin of life on Earth, invented at different times, A4 sheet is not enough for it, so many different options and theories have been developed by people for a long time. The three main and largest groups of assumptions are the connection with the divine essence, natural evolution and cosmic settlement. Each option has followers and opponents, but the main scientific option is the theory of biochemistry. Last modified: 2025-01-23 12:01

Concept, conditions, causes, sources, analysis, an example of uncertainty. Uncertainty is

Uncertainty is an inherent characteristic of real business conditions. After all, an entrepreneur, despite his experience and professionalism, cannot influence every really existing socio-economic process or foresee absolutely all possible situations that accompany the adoption and implementation of his decisions. Last modified: 2025-01-23 12:01

Sirius - a planet or a star in the constellation?

The brightest of all the stars in the sky that people look at from Earth is Sirius. This is a star from the constellation Canis Major, having a mass of more than twice that of the Sun and emitting light more than twenty times brighter than the Sun. Legends, religious cults were associated with this star, aliens and brothers in mind were expected from there. Last modified: 2025-01-23 12:01

Constellation Cygnus: scheme. History of the constellation Cygnus. When is the best time to see constellations?

One of the most famous celestial drawings is the constellation Cygnus. The layout of its stars resembles a flying bird. From ancient times it was attributed to the divine origin. Today it excites scientific minds, promising to reveal the secrets of a black hole and other space objects. Last modified: 2025-01-23 12:01

Geosynclinal belts: definition, conditions for their formation and main types

Geosynclinal belt is a geotectonic unit characterized by igneous, seismic and volcanic activity, large-scale metamorphic processes and a certain set of folded structures with relatively high mobility. In the modern sense, geosynclinal belts are associated with active continental margins and zones of collision of continental plates. Last modified: 2025-01-23 12:01

Who invented the radio? When did Popov invent the radio?

For 119 years, society can not decide who invented the radio. The fact is that almost at the same time this brilliant discovery was made by several scientists from different countries. Alexander Popov, Guglielmo Marconi, Nikola Tesla, Heinrich Hertz, Ernest Rutherford - all these people are somehow connected with radio. Last modified: 2025-01-23 12:01