physics

Nikolai Andreyev (physicist)

Nikolai Andreyev (physicist) is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nikolai Andreyev (physicist) rather than just read about it. In short: Nikolai Nikolayevich Andreyev (28 July 1880 – 31 December 1970) was a physicist who specialized in the study of music and acoustics. The Andreyev Acoustics Institute and a research vessel Akademik Nikolai Andreyev are named after him.

Key takeaways

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Reproduce the core statement of Nikolai Andreyev (physicist) from memory before moving on to harder problems.

Reference excerpt

Nikolai Nikolayevich Andreyev (28 July 1880 – 31 December 1970) was a physicist who specialized in the study of music and acoustics. The Andreyev Acoustics Institute and a research vessel Akademik Nikolai Andreyev are named after him. Andreyev was born to a government official, Nikolai Fedorovich and Alexandra Nikitichna Konvisarova. After the death of his parents in a fire, he was brought up by relatives in Moscow. He went to the classical gymnasium and after graduating in 1892, joined the military school where he studied mathematics and European languages, apart from excelling in music. He joined the Higher Technical Institute in 1898 but was expelled for taking part in student agitations. He was influenced by Nikolai Bugaev and in 1903 he went to study at the University of Göttingen and then moved to Basel to study under August Hagenbach. He worked on optics and examined approaches to identification of active components using polarization measurements. After receiving his doctorate he worked in Moscow in the laboratory of Pyotr Lebedev. During World War I he was involved in developing methods for locating guns using sounds. From 1918 he was professor of physics at Omsk and in 1920 he moved to Moscow to study acoustics with Abram Ioffe. He also studied piezoelectricity, microphones, and the production of sounds by animals. He received a Order of Lenin in 1945 and 1953 and was decorated Hero of Socialist Labour in 1970.

Scientific Activity His main research focused on acoustics (hydroacoustics, architectural, biological, and nonlinear acoustics). He developed a rigorous theory of sound propagation in moving media. He conducted studies on the theory of sound propagation along absorbing surfaces, the theory of acoustic filters, and finite-amplitude sound waves. A number of his works dealt with the study of the spectrum of damped oscillations, vibrations in crystalline and anisotropic media, as well as issues of sound reverberation and sound insulation. Under his leadership, research in nonlinear acoustics, sound propagation in layered media, and electromechanical active materials was initiated in the country. He founded a scientific school in the field of physical and technical acoustics. During the First World War, Andreev headed a gas-mask laboratory and worked on the development of a dosimeter for toxic gases. From 1927 to 1934, he took part in compiling the Technical Encyclopedia edited by L. K. Martens, authoring articles in the fields of physics and acoustics. In 1931, at his initiative, the Research Institute of the Musical Industry (NIIMP) was established. During the Second World War, he organized several scientific and technical groups that operated under his leadership within active naval fleets (the Black Sea, Baltic, and Caspian fleets). For this work, Nikolai Nikolaevich was awarded the Order of the Red Banner of Labor.

References

Worked examples

Example 1 — a first encounter with Nikolai Andreyev (physicist)

Start with the simplest possible case. Write down what Nikolai Andreyev (physicist) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nikolai Andreyev (physicist) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nikolai Andreyev (physicist) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nikolai Andreyev (physicist)

In research: Nikolai Andreyev (physicist) appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nikolai Andreyev (physicist) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nikolai Andreyev (physicist) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1880 births, 1970 deaths, 20th-century Russian physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Nikolai Andreyev (physicist) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Nikolai Andreyev (physicist) in 20 minutes

Read the reference excerpt below once, without taking notes.
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Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
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Frequently asked questions

What is Nikolai Andreyev (physicist) in simple terms?

Why does Nikolai Andreyev (physicist) matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nikolai Andreyev (physicist)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nikolai Andreyev (physicist).