Ballistic trajectory is the movement of a body in free fall mode. It must have initial speed and some elevation angle. Last modified: 2025-06-01 07:06
Science
Which statements are true? How can you define them for numbers? Let's try to find answers to these questions, find out the essence of a true statement, its distinctive characteristics. Last modified: 2025-01-23 12:01
History as a science has existed for at least 2500 years. Its founder is considered the Greek scientist and chronicler Herodotus. In ancient times, this science was valued and considered its "mentor of life". Last modified: 2025-01-23 12:01
If you type the phrase “do-it-yourself perpetual motion machine” in the Google search bar on the Internet, the search engine will helpfully display a very impressive number (over 75,000) of various results, including pictures, detailed instructions and videos with working models. Last modified: 2025-01-23 12:01
Carbon monoxide, also known as carbon monoxide, has a very strong molecular composition, is inert in its chemical properties and does not dissolve in water. This compound is also incredibly toxic, when it enters the respiratory system, it combines with blood hemoglobin, and it stops carrying oxygen to tissues and organs. Last modified: 2025-01-23 12:01
The article is devoted to alloying elements. Their features, varieties, as well as their influence on the metal structure are considered. Last modified: 2025-01-23 12:01
Often we hear phrases that mention the word "aspect". What does it mean when its use is justified? Learn the meaning and confidently use in speech. Last modified: 2025-01-23 12:01
There are four most important classes of organic compounds that make up the body: nucleic acids, fats, carbohydrates and proteins. The latter will be discussed in this article. Last modified: 2025-01-23 12:01
The article describes the process of formation of adenosine triphosphate. The features of ATP synthesis in cell mitochondria and the role of ATP synthase in such reactions are also indicated. Last modified: 2025-01-23 12:01
Many people know the phrase from the film by Andrew and Lawrence Wachowski: "The Matrix is a system. It is our enemy." However, it is worth understanding the concepts, terms, as well as the capabilities and properties of the system. Is she as scary as she is presented in many films and literary works? The characteristics and properties of the system and examples of their manifestation will be discussed in the article. Last modified: 2025-06-01 07:06
Man is always engaged in the construction of objects for various purposes. Buildings to be built must be strong and durable. To do this, it is necessary to ensure the stability of the structure. Read about it in the article. Last modified: 2025-01-23 12:01
Moving electric charge is the basis of many phenomena occurring in nature. For example, many particles charged with high energy constantly "bombard" our Earth. Consider it in natural phenomena, as well as its main properties. Last modified: 2025-01-23 12:01
When we talk about artificial intelligence (AI), we refer to the field of computer science. Artificial intelligence is driven by machines, computers and mostly software. Machines imitate intellectual activity, which is why it is called artificial, a kind of cognitive function based on the environment, observations and the learning process. Last modified: 2025-01-23 12:01
The oxidation state of nitrogen has a variety of meanings. Each oxidation state has its own compound. It's better to just remember these connections. Last modified: 2025-01-23 12:01
The left and right hemispheres in the human brain are responsible for different functions. Research on these features is still ongoing. Last modified: 2025-01-23 12:01
Inventors around the world have given us many devices that make life more comfortable and varied. Progress does not stand still, and if a few centuries ago there were simply not enough technical capabilities to implement all the ideas, today it is much easier to bring ideas to life. Last modified: 2025-01-23 12:01
In nature, there are a large number of a wide variety of forces that affect objects and the environment. Each of them has its own unique nature and has a certain impact on the environment. To study and measure such an impact, the term "physical quantity" was introduced. Last modified: 2025-01-23 12:01
At the end of the 19th century, Friedrich Ratzel dominated the German geographical scene. First of all, he was engaged in the natural sciences, and the science of the Earth became the link between them and the study of man. He received his doctorate in zoology, geology and comparative anatomy, and became the founder of anthropogeography. Last modified: 2025-01-23 12:01
Additional education of the child in accordance with the Concept of additional education in various institutions. Last modified: 2025-01-23 12:01
Units of measurement of the amount of data needed to calculate the amount of information. This value is calculated logarithmically. In other words, several objects can be treated as one. In this case, the number of potential states will be multiplied. And the amount of information in this case will add up. Last modified: 2025-01-23 12:01
The well-being of many people depends on weather conditions. In this case, we talk about weather dependence. What does mean atmospheric pressure mean and how does it affect the he alth of residents? How to minimize the consequences of his fluctuations? What is considered normal?. Last modified: 2025-01-23 12:01
Propositional algebra is an exact science that does not compromise. To solve examples with conjunction, disjunction, implication, and so on, you can build a truth table in the Excel application. It is equipped with a set of logical functions that automate and facilitate the process of finding the result. Last modified: 2025-01-23 12:01
Designers almost daily realize their seemingly fantastic ideas. Space technology is developing rapidly. Some of them also live on earth. If earlier a rocket or a spaceship was just a fantasy, then what will surprise the designers in the future? New robots or the creation of a lunar city, the use of space weapons or a starship that crosses the galaxy?. Last modified: 2025-01-23 12:01
Gymnosperms (lat. Gymnospérmae) and angiosperms, or flowering (lat. Magnoliophyta) are two different groups of the plant kingdom (sub-kingdom Higher plants), which appeared sequentially in the evolutionary development of nature. They play an important role in the life support of the planet, making up its green cover. Last modified: 2025-01-23 12:01
The skeleton serves as a point of attachment for muscles, support for soft tissues, protection and receptacle for internal organs. It develops from the mesenchyme. The human skeleton consists of about two hundred individual bones. The axial skeleton and the accessory skeleton are made up of different bones, but almost all of them form a single whole with the help of ligaments, joints and other connections. Last modified: 2025-01-23 12:01
Organochlorine compounds (abbr. HOS) are products of substitution of hydrogen atoms by chlorine in various organic compounds. Organochlorine compounds include polychlorinated dioxins, dibenzofurans, polychlorinated biphenyls, and organochlorine pesticides. Last modified: 2025-01-23 12:01
Let's analyze the main scientific branches of pedagogy. Let's highlight their distinctive features, characteristics. Last modified: 2025-01-23 12:01
Pyrolysis gas is usually obtained by burning various substances and materials at high temperatures in an oxygen-free environment. Such fuel can be used in various fields. This gas is used, for example, for heating boilers, kitchen stoves and stoves, and even cars. Last modified: 2025-01-23 12:01
Artificial intelligence, neural networks and machine learning: what's the difference? Knowledge engineering and the problems of creating artificial intelligence: is it possible to create AI and can it surpass humans? Machine learning and data mining. Last modified: 2025-01-23 12:01
The general rules of syllogism and logical figures help to easily distinguish correct conclusions from incorrect ones. If in the process of mental analysis it turns out that the statement corresponds to all the rules, then it is logically correct. Exercises in developing the skill of using these rules allows you to form a culture of thinking. Last modified: 2025-01-23 12:01
The average human lifespan can be calculated. There are even special formulas that are designed specifically for this purpose. When calculating the life expectancy of a person, it turns out to what approximate age he should live. Last modified: 2025-01-23 12:01
Lipids are the third class of organic substances that make up a living organism. The correct qualitative and quantitative composition of cell lipids determines its capabilities, activity and survival. Last modified: 2025-01-23 12:01
Aluminum hydrochloride is a member of a group of specific aluminum s alts that share a common chemical formula. This substance is actively used in modern cosmetology, in antiperspirants and deodorants. He also found his application as a coagulant in devices that purify water. Last modified: 2025-01-23 12:01
Bayesian network (or Bayesian network, belief network) is a graph probabilistic model, which is a set of variables and their probabilistic dependencies according to Bayes. Formally, a Bayesian network is a directed acyclic graph, each vertex of which corresponds to a random variable, and the arcs of the graph encode conditional independence relations between these variables. Last modified: 2025-01-23 12:01
Isotopes of lithium: their quantity and description. Natural and artificial isotopes. Main characteristics. Nuclear reactions involving lithium isotopes. The layout of the nuclei. Methods for the separation of lithium isotopes and their application in various industries. Last modified: 2025-06-01 07:06
The Black–Scholes Option Pricing Model (OPM) is a model that determines the theoretical price of European options, implying that if the underlying asset is traded on the market, then the option price for it implicitly already set by the market itself. Last modified: 2025-01-23 12:01
Some terms tend to be useful both in technical sciences and in the humanities, and sometimes even in everyday life. Among them there is a word with a stunningly simple and understandable meaning - aberration. What is this term and what is its true meaning? We will try to understand this, and also consider its meaning within some disciplines. Last modified: 2025-01-23 12:01
Another person's advice on how to proceed in order to achieve the goal is sometimes very valuable: the correct and more rational ways of solving the problem are determined. In professional activities, it is also sometimes necessary to consult with colleagues, especially when the issue of the he alth or life of a client is being resolved. Last modified: 2025-01-23 12:01
The Haversian system got its name from an English physician named Clopton Havers (1657-1702), who is known for his original research into the analysis of the microscopic structure of bones and joints. He was the first person to describe Charpy fibers. Last modified: 2025-01-23 12:01
The world will probably never know about all the secrets of Nikola Tesla. And to this day, scientists are trying to unravel the secrets left after him. We know what the great scientist was working on; it is also known that not all of his works were published, and some, as it is believed, the author destroyed with his own hand. Why is this man so important to the history of our planet? Let's look at his biography. Last modified: 2025-01-23 12:01