mathematics

Leonid Sedov

Leonid Sedov is a mathematics 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 Leonid Sedov rather than just read about it. In short: Leonid Ivanovich Sedov (Russian: Леонид Иванович Седов; 14 November 1907, Rostov-on-Don – 5 September 1999, Moscow) was a Russian physicist who worked as an engineer in the former Soviet space program. In 1930 Sedov graduated from the Moscow State University, where he had been a student of Sergey Chaplygin, with the degree of Doctor of Physics and Mathematical Sciences.

Key takeaways

Leonid Sedov belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Leonid Sedov to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Leonid Sedov from memory before moving on to harder problems.

Reference excerpt

Leonid Ivanovich Sedov (Russian: Леонид Иванович Седов; 14 November 1907, Rostov-on-Don – 5 September 1999, Moscow) was a Russian physicist who worked as an engineer in the former Soviet space program. In 1930 Sedov graduated from the Moscow State University, where he had been a student of Sergey Chaplygin, with the degree of Doctor of Physics and Mathematical Sciences. He later became a professor at the university. During World War II, he devised the so-called Sedov Similarity Solution for a blast wave, now called Taylor–von Neumann–Sedov blast wave after three scientists who did that independently. In 1947 he was awarded the Chaplygin Prize. He was the first chairman of the USSR Space Exploration program and broke first news of its existence in 1955. He was president of the International Astronautical Federation (IAF) from 1959 to 1961. Until recently, it had been thought that Sedov was the principal engineer behind the Soviet Sputnik project.

Awards and honors Order of the Badge of Honour (1943) Two Orders of the Red Banner of Labour (1945, 1961) Stalin Prize, 2nd class (1952) Six Orders of Lenin (1954, 1963, 1967, 1975, 1980, 1987) Hero of Socialist Labour (1967) Allan D. Emil Memorial Award (1981) Order "For Merit to the Fatherland", 4th class (1998)

See also Taylor–von Neumann–Sedov blast wave

References

Bibliography Reference to 1955 announcement Obituary notice in Minutes of General Assembly Meetings, 2000 section Sedov, L. I., 1959, Similarity and Dimensional Methods in Mechanics, 4th edn. Academic. L.I. Sedov, A course in continuum mechanics. Volumes. I-IV. Wolters-Noordhoff Publishing, Netherlands, 1971. Sedov, L. I., "Propagation of strong shock waves," Journal of Applied Mathematics and Mechanics, Vol. 10, pages 241–250 (1946). (See also: Barber–Layden–Power effect) Reference to confusion with Ukrainian physicist Sergei Korolyov [1].

Worked examples

Example 1 — a first encounter with Leonid Sedov

Start with the simplest possible case. Write down what Leonid Sedov claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, 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 Leonid Sedov 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 Leonid Sedov 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 Leonid Sedov

In research: Leonid Sedov appears in mathematics 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 Leonid Sedov 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: Leonid Sedov is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1907 births, 1999 deaths, 20th-century Russian mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for Leonid Sedov 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 Leonid Sedov in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Leonid Sedov means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Leonid Sedov out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Leonid Sedov in simple terms?

Why does Leonid Sedov matter?

Because it connects several mathematics 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 Leonid Sedov?

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 Leonid Sedov.