chemistry

Jerzy Kroh

Jerzy Kroh is a chemistry 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 Jerzy Kroh rather than just read about it. In short: Jerzy Kroh (28 August 1924 – 15 February 2016) was a Polish chemist, the founder of a radiation chemistry school in Łódź, and the author or co-author of about 400 publications and several books. From 1981 to 1987, Kroh was rector of the Technical University of Lodz, and from 1962 to 1994 was in charge of the Interministerial Institute of Applied Radiation, of which he was a founder.

Key takeaways

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

Reference excerpt

Jerzy Kroh (28 August 1924 – 15 February 2016) was a Polish chemist, the founder of a radiation chemistry school in Łódź, and the author or co-author of about 400 publications and several books. From 1981 to 1987, Kroh was rector of the Technical University of Lodz, and from 1962 to 1994 was in charge of the Interministerial Institute of Applied Radiation, of which he was a founder. From 1996 to 1998, Kroh was Vice President of Łódź, responsible for science and education. He received honorary doctorates from the University of Leeds and the University of Strathclyde in the United Kingdom, the University of Pavia in Italy, and the Technical University of Lodz. Kroh has many other awards as well, including the Knight's Cross of the Order of Polonia Restituta, Knight Commander of the Order of the Rebirth of Poland, and the Imperial Japanese Order of the Silver and Gold Star. He is an honorary member of the Royal Society of Edinburgh HFRS, of the Polish Academy of Sciences, and of the Scientific Society of Lodz. He died on 15 February 2016 at the age of 91.

Bibliography Ewa Chojnacka; Zbigniew Piotrowski; Ryszard Przybylski (2006). Profesorowie Politechniki Łódzkiej 1945–2005 (in Polish). Łódź: Wydawnictwo Politechniki Łódzkiej. pp. 127–128. Józef Mayer (1994). "Profesor Jerzy Kroh". Sylwetki łódzkich uczonych (Zeszyt 13). Łódzkie Towarzystwo Naukowe. ISSN 1230-4328.

References

Worked examples

Example 1 — a first encounter with Jerzy Kroh

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

In research: Jerzy Kroh appears in chemistry 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 Jerzy Kroh 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: Jerzy Kroh is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1924 births, 2016 deaths, Academic staff of Łódź University of Technology, so understanding it makes those chapters shorter.
In everyday life: Look for Jerzy Kroh 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 Jerzy Kroh in 20 minutes

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

Frequently asked questions

What is Jerzy Kroh in simple terms?

Why does Jerzy Kroh matter?

Because it connects several chemistry 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 Jerzy Kroh?

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 Jerzy Kroh.