Education, self-education and personal growth - methods, lessons

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Optical lenses (physics): definition, description, formula and solution
Optical lenses (physics): definition, description, formula and solution

There are objects that are capable of changing the density of the electromagnetic radiation flux falling on them, that is, either increasing it by collecting it at one point, or decreasing it by scattering it. These objects are called lenses in physics. Let's take a closer look at this question

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Astronomical clock. What is the astronomical hour?
Astronomical clock. What is the astronomical hour?

With the increasing complexity of human activity, methods of measuring time also improved. Each interval began to acquire more and more precise meaning. An atomic and ephemeral second, an astronomical hour arose (“How much is this?” You ask. The answer is a little lower). Today, the focus of our attention is the hour, the most commonly used unit of time in everyday life, as well as the clock, without which it is difficult to imagine the modern world

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Ludwig II of Bavaria: biography and photos
Ludwig II of Bavaria: biography and photos

King Ludwig II of Bavaria was one of the most controversial German monarchs. He had little interest in state affairs, but devoted all his time to patronizing the arts and building castles. The monarch was declared mentally ill and died under mysterious circumstances

  • What is the ethics of science?

    In all areas of human activity, there are certain moral standards. Science is no exception. Scientists are obliged to obey the system of moral norms, universal moral requirements and prohibitions: do not steal, do not lie, and a number of other well-known principles

  • Research methods in term paper: examples

    The modern system for assessing the knowledge gained by students includes work on a course project and the design of a finished work. Thus, in addition to testing knowledge, it is possible to assess the ability of students to consistently express their thoughts and logically achieve their goals. The course work contains standard sections, including: determination of relevance, setting goals, tasks of work and determination of research methods

  • Valence of iron. What is the valency of iron?

    It is difficult to overestimate the role of iron for the human body, because it contributes to the "creation" of blood, its content affects the level of hemoglobin and myoglobin, iron normalizes the functioning of the enzyme system. But what is this element in terms of chemistry? What is the valency of iron? This will be discussed in this article

  • The spine is Definition, human anatomy. The structure of the spine, the relationship with organs and muscles, the definition of changes and treatment

    The spine is the main axis to which almost all internal organs in the human body are attached. Its constituent parts are the vertebrae, the structure and functions of which are different in each department. The total number of human vertebrae reaches thirty-four