physics

Georg Pfotzer

Georg Pfotzer 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 Georg Pfotzer rather than just read about it. In short: Georg Pfotzer (29 November 1909 – 24 July 1981) was a German physicist. He was a student of Erich Regener in the 1930s and worked with Regener to investigate cosmic rays by using balloons to carry scientific instruments such as Geiger counters to the upper atmosphere.

Key takeaways

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

Reference excerpt

Georg Pfotzer (29 November 1909 – 24 July 1981) was a German physicist. He was a student of Erich Regener in the 1930s and worked with Regener to investigate cosmic rays by using balloons to carry scientific instruments such as Geiger counters to the upper atmosphere. The terms Pfotzer curve and Pfotzer maximum, relating to the distribution of charged particles in the atmosphere resulting from cosmic rays, are named after him. It has been suggested that this is misleading, as Regener was the principal investigator, but he was persecuted and forced to resign during the Nazi era as his wife was of Jewish ancestry. He was director of the Max Planck Institute for Solar System Research between 1965 and 1977.

External links Helmut Rosenbauer: Nachruf für Professor Dr.-Ing. Georg Pfotzer (29. 11. 1909 - 24. 7. 1981) in Physikalische Blätter

Publications Regener, E. and Pfotzer, G.: Messungen der Ultrastrahlung in der oberen Atmosphäre mit dem Zählrohr (in German), Phys. Zeit. 35, 779–784, 1934. Regener E. and Pfotzer, G.: Intensity of the Cosmic Ultra-Radiation in the Stratosphere with the Tube-Counter, Nature, 134, 325–325, 1935 Regener, Erich; Georg Pfotzer (November 1935). "Vertical Intensity of Cosmic Rays by Threefold Coincidences in the Stratosphere". Nature. 136 (3444): 718–719. Bibcode:1935Natur.136..718R. doi:10.1038/136718a0. S2CID 4087956. Pfotzer, Georg (1985). "Erich Regener's Cosmic Ray Work in Stuttgart and Related Subjects". In Yataro Sekido and Harry Elliot (ed.). Early History of Cosmic Ray Studies. Astrophysics and Space Science Library. Vol. 118. Dordrecht, Holland: D. Riedel Publishing Company.

References

Worked examples

Example 1 — a first encounter with Georg Pfotzer

Start with the simplest possible case. Write down what Georg Pfotzer 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 Georg Pfotzer 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 Georg Pfotzer 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 Georg Pfotzer

In research: Georg Pfotzer 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 Georg Pfotzer 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: Georg Pfotzer is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1909 births, 1981 deaths, 20th-century German physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Georg Pfotzer 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 Georg Pfotzer in 20 minutes

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

Frequently asked questions

What is Georg Pfotzer in simple terms?

Why does Georg Pfotzer 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 Georg Pfotzer?

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 Georg Pfotzer.