Geography

Where and how did the name of our country come from - Russia

Man as a result of biological and social evolution. Where did man come from? This is the question that humanity has been asking since the moment it became aware of itself. During all this time, many theories have been created to explain the origin, united in

Why Russia won major wars (4 photos)

There is no country in the world that would win all its wars, and the statement that Russia has never lost them is not a declaration of love for the Motherland - it is a confession of one’s own ignorance. Below are ten wars in which Russia, alas and ah, suffered

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Expansion of the Universe: how it was discovered

The study not only suggests that chaos is absolute, but also offers mathematical tools to discover this. When it comes to the most reasonable model of the evolution of the Universe, these instruments show that the early Universe was submerged

Sodium in nature (2.6% in the Earth's crust)

Lecture plan: 1. Distribution of sodium in nature. 2. Historical background. 3. Physical properties of sodium 4. 4. Chemical properties of sodium 5. Preparation of sodium. 6. 6.Obtaining sodium. Sodium (Natrium), Na, chemical element of group I of the periodic table

The moral meaning of orientation “to life”

“Can something that is considered a virtue by a whole people be a vice in a private person? This prejudice, confirmed by the democratic envy of some philosophers, only serves to spread low egoism. The selfless thought that the grandchildren will

Artur Nikolaevich Chilingarov

Special Representative of the President of the Russian Federation for International Cooperation in the Arctic and Antarctic, Member of the Maritime Collegium under the Government of the Russian Federation, Deputy of the State Duma of the Federal Assembly of the Russian Federation, Prezi

Definition of the concepts of disinfection and sterilization

Disinfection concept and its tasks. Disinfection (from French des - eliminate and Latin infectio - infection) is a method of disinfecting environmental objects, aimed at destroying pathogenic microorganisms in them. Influencing pathogens of infectious diseases

Reading rules in English

Transalveolar median sonant. This sound can only very conditionally be compared with the Russian [r]. The Russian sound [р] is vibrating; when pronounced, the outstretched tip of the tongue trembles, hitting the alveoli, for example, if you pronounce the word р-р in a drawn-out manner