physics

Isaak Kikoin

Isaak Kikoin 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 Isaak Kikoin rather than just read about it. In short: Isaak Konstantinovich (Kushelevich) Kikoin (Russian: Исаа́к Константи́нович (Ку́шелевич) Кико́ин; 28 March 1908 – 28 December 1984) was a Soviet physicist and an author of physics textbooks in Russian language who played an important role in the Soviet nuclear weapons program. Biography Kikoin was born in the town of Novye Zhagory (now Žagarė in Lithuania), Russian Empire, in a Lithuanian Jewish family; his parents…

Key takeaways

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

Reference excerpt

Isaak Konstantinovich (Kushelevich) Kikoin (Russian: Исаа́к Константи́нович (Ку́шелевич) Кико́ин; 28 March 1908 – 28 December 1984) was a Soviet physicist and an author of physics textbooks in Russian language who played an important role in the Soviet nuclear weapons program.

Biography Kikoin was born in the town of Novye Zhagory (now Žagarė in Lithuania), Russian Empire, in a Lithuanian Jewish family; his parents, Kushel Isaakovich and Bunya Israilevna, were school teachers. During World War I, his family was relocated deeper into Russia, and Kikoin enrolled in a gymnazium in Pskov. Upon graduation, he went on to study physics at the Leningrad Polytechnic Institute in 1925. In 1930-31, he earned his specialist degree in physics and successfully defended his thesis on Photomagnetism for his Doktor Nauk in 1936. He taught physics at the Leningrad Polytechnic Institute, and his early work investigated the electrical conductivity and magnetic attractions in metals until 1938. From 1938 till 1944, he taught physics at the Ural Polytechnic Institute and found a landmine project with the Red Army that would demagnetize, and detonate the German army's tanks. It was Kurchatov who brought Kikoin in Soviet program of nuclear weapons and assigned him the Uranium enrichment project at this Laboratory No. 2 using the gaseous diffusion method took place under Kikoin while Lev Artsimovich worked on electromagnetic isotope separation. During the Russian Alsos, he went to Germany to locate German knowledge that would prove useful in Soviet programs. He remained associate with Soviet program of nuclear weapons, and was an academician of the Academy of Sciences of the Soviet Union and was awarded the Stalin Prize a total of four times (1942, 1949, 1951, 1953), the Lenin Prize in 1959, and the USSR State Prize in 1967 and 1980. Kikoin was named a Hero of Socialist Labour (1951); he also won the Kurchatov Medal (1971). Kikoin was with Igor Kurchatov as one of the founders of the Kurchatov Atomic Energy Institute, which developed the first Soviet nuclear reactor in 1946. This was the lead-in to the Soviet atomic bomb project with the first atomic bomb test taking place in 1949. In 1970, Kikoin (jointly with Andrey Kolmogorov) started issuing Kvant magazine, a popular science magazine in physics and mathematics for school students and teachers. He authored texts on molecular physics in 1978, and it has been translated in Persian language.

Illustrations

Worked examples

Example 1 — a first encounter with Isaak Kikoin

Start with the simplest possible case. Write down what Isaak Kikoin 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 Isaak Kikoin 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 Isaak Kikoin 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 Isaak Kikoin

In research: Isaak Kikoin 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 Isaak Kikoin 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: Isaak Kikoin is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1908 births, 1984 deaths, Academic staff of Peter the Great St. Petersburg Polytechnic University, so understanding it makes those chapters shorter.
In everyday life: Look for Isaak Kikoin 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 Isaak Kikoin in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Isaak Kikoin 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 Isaak Kikoin out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Isaak Kikoin in simple terms?

Why does Isaak Kikoin 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 Isaak Kikoin?

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 Isaak Kikoin.