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Sound pitch, volume and timbre
Sound pitch, volume and timbre

Our perception of the pitch of a sound and its other properties is determined by the characteristics of the acoustic wave. These are the same characteristics that are inherent in any mechanical wave, namely the period, frequency, amplitude of oscillations. The subjective sensations of sound do not depend on the length and speed of the wave. In the article we will analyze the physics of sound. Pitch and timbre - how are they determined? Why do we perceive some sounds as loud and others as quiet? The answers to these and other questions will be given in the article

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General Petrov and his comprehensive theory of God-holding
General Petrov and his comprehensive theory of God-holding

General Petrov expounded the theoretical provisions of the organization in a simple, understandable language, demonstrating considerable erudition and outstanding intelligence. Of course, there is no place for Christians in the orderly ranks of the defenders of everything “down-to-earth” and “homespun”, so he “crossed himself” and became Miragor

  • Movement of plants. How is the movement of plants different from the movement of animals? plant growth
    Movement of plants. How is the movement of plants different from the movement of animals? plant growth

    At first glance, the world of plants seems to be motionless. But upon observation, one can see that this is not entirely true. Plant movement is very slow. They grow, and this proves that they make certain growth movements. If you plant a bean seed in the soil, under favorable conditions, it begins to grow, drilling through the soil, bringing out two cotyledons

  • Yuri Khmelnitsky: short biography, politics, years of government
    Yuri Khmelnitsky: short biography, politics, years of government

    The subject of this article is the biography of the Ukrainian hetman Yuri Khmelnitsky. We will consider various aspects of his life

  • The era of pacifism: definition and essence
    The era of pacifism: definition and essence

    The word "pacifism" is of Latin origin and literally means "I make peace". Speaking about this phenomenon, first of all, they mean opposition to any cruelty, immorality, physical violence and condemnation of military actions in order to achieve power. Such a view does not justify war under any pretext. Its main idea is that an agreement on any issues can be reached peacefully - through negotiations. The 20s of the 20th century were called the era of pacifism

  • Undergraduate practice - the start of a successful career
    Undergraduate practice - the start of a successful career

    Undergraduate practice: the first professional experience and the beginning of a successful career. Getting good references guarantees employment

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What is participial turnover: forms and usage
What is participial turnover: forms and usage

An article about such a grammatical phenomenon as the participial phrase in English. From the article, the reader will understand what participle turnover is, what forms of use exist, and also how the English participle is used in practice

  • Brave - what is it? Word interpretation

    In this article we will reveal the interpretation of the word "brave". This is an adjective. It characterizes nominal parts of speech. We will indicate what meaning this unit of speech is endowed with. Also, with the help of synonyms, we will reveal its meaning even better. For a better perception of information, we will support the theory with examples of sentences

  • Chulym River - tributaries and sources

    Chulym has a considerable length, quite a bit short of 2 thousand km. To be more precise, the length of the water flow is 1895 km. Although in some official sources there is a slightly different figure - 1799 km. 134 thousand km. sq. - this is the area of the basin, which includes the Chulym River. The source of the watercourse is in Khakassia. On its way, it crosses the territories of the Krasnoyarsk Territory and the Tomsk Region

  • Guidelines are Definition, characteristics, structure, development system and execution rules

    Guidelines allow you to perform certain work on a well-planned structure. For example, guidelines are relevant for term papers, which are a mandatory element in the higher education system. Let's dwell on this issue in more detail

  • Mountains on the moon: names, heights and photos

    From the earliest times, billions of eyes have gazed into the night sky, trying to unravel the mystery of the silent satellite that illuminated their path. The moon is our closest cosmic neighbor, but we are attracted not only by this neighborhood. It is an integral part of our life, accompanying us everywhere with its mysterious moonlight, reflected in poetry and prose, films and music, hundreds of legends and mystical stories

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