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Which water freezes faster: hot or cold? What does it depend on
Which water freezes faster: hot or cold? What does it depend on

Which water freezes faster, hot or cold, is influenced by many factors, but the question itself seems a little strange. It is understood, and it is known from physics, that hot water still needs time to cool down to the temperature of comparable cold water in order to turn into ice. Cold water can skip this stage, and, accordingly, it wins in time

  • Stratigraphic scale of Russia. International Stratigraphic Scale
    Stratigraphic scale of Russia. International Stratigraphic Scale

    Chronostratigraphic classification has a common goal. It consists in the systematic division of the sequence of layers of the planet into subdivisions. They have their own names that correspond to intervals of geological time

  • Pogodin Mikhail Petrovich: a review of biography and creativity
    Pogodin Mikhail Petrovich: a review of biography and creativity

    Pogodin Mikhail Petrovich, whose brief biography is the subject of this article, lived a long and fruitful life (1800-1875). He was the son of a serf Count S altykov, but he received a free education and entered the Faculty of History and Philology of Moscow University. Here he defended his master's thesis and became a professor

  • What is statics: theorems and axioms
    What is statics: theorems and axioms

    The whole world consists of the movement of any bodies, including people. It obeys various laws of physics that study its regularities. The science that studies the movement of a body is called mechanics. In turn, it is divided into sections, one of which is statics. For the most part, it is aimed at revealing the patterns of the equilibrium state of bodies

  • Analysis of Bunin's story "The Caucasus": system of images, landscape
    Analysis of Bunin's story "The Caucasus": system of images, landscape

    One of the works included in the cycle "Dark Alleys" by I. Bunin is "The Caucasus". This story is a vivid example of the extraordinary artistic gift of the writer. It is amazing how in such a small work, the author was able to convey the inner world and state of mind of completely different people. You can learn the true mastery of the Russian artistic word by analyzing Bunin's story "The Caucasus" or any other creation from this collection

Interesting articles

Dihedral angles and formula for their calculation. Dihedral angle at the base of a quadrangular regular pyramid
Dihedral angles and formula for their calculation. Dihedral angle at the base of a quadrangular regular pyramid

In geometry, two important characteristics are used to study figures: the lengths of the sides and the angles between them. In the case of spatial figures, dihedral angles are added to these characteristics. Consider what it is, and also describe the method for determining these angles using the example of a pyramid

  • A madcap is a person driven by the heart
    A madcap is a person driven by the heart

    The modern world is built on logic: each step must be carefully considered in order to achieve the most effective result. But what if someone does not want to be guided by logic? Then he will immediately be declared a madman! How and why? For details, read the article

  • Regions of Belarus and their features
    Regions of Belarus and their features

    There are much fewer regions in Belarus than in Russia. Only six. They are easy to remember, and it is also interesting that the Minsk region borders on all the others. You can visit all six regions in a few days, because the country is small

  • Eagle of the 3rd Reich: what does it mean, history, photo
    Eagle of the 3rd Reich: what does it mean, history, photo

    The eagle is one of the most common figures depicted on coats of arms. This proud and strong king bird symbolizes not only power and dominance, but also courage, bravery and insight. In the 20th century, Nazi Germany adopted the eagle as its emblem. Read more about the imperial eagle of the 3rd Reich below in the article

  • Tir - a god in the north and a city in the south
    Tir - a god in the north and a city in the south

    In the wake of the popularity of Marvel films about the adventures of the god Thor, interest in Norse mythology in general has increased. There are many interesting personalities among the gods of the northern pantheon. In this article we will tell about the Scandinavian god Tire. Let's pay attention to the Phoenician city of the same name to remind you that consonant names and names in history are not always interconnected

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  • What is cold fusion? Cold fusion: the principle
    What is cold fusion? Cold fusion: the principle

    Cold fusion - what is it? Myth or reality? This direction of scientific activity appeared in the last century and still excites many scientific minds. Many gossip, rumors, speculations are associated with this type of thermonuclear fusion

  • What reactions are typical for alkanes
    What reactions are typical for alkanes

    Each class of chemical compounds is capable of exhibiting properties due to their electronic structure. Alkanes are characterized by substitution, elimination or oxidation reactions of molecules. All chemical processes have their own characteristics of the course, which will be discussed further

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Lanthanides and actinides: position in the periodic system
Lanthanides and actinides: position in the periodic system

Lanthanides and actinides are two families that contain 14 chemical elements each, as well as the metals themselves - lanthanum and actinium. Their properties - both physical and chemical - will be considered by us in this paper

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