physics

Polykarp Kusch

Polykarp Kusch 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 Polykarp Kusch rather than just read about it. In short: Polykarp Kusch (German: [ˈpoːliˌkaʁp ˈkuʃ]; January 26, 1911 – March 20, 1993) was a German–American physicist who shared the 1955 Nobel Prize in Physics with Willis Eugene Lamb for his accurate determination that the electron magnetic moment was greater than its theoretical value, thus leading to reconsideration of and innovations in quantum electrodynamics. Biography Polykarp Kusch was born on January 26, 1911, in…

Key takeaways

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

Reference excerpt

Polykarp Kusch (German: [ˈpoːliˌkaʁp ˈkuʃ]; January 26, 1911 – March 20, 1993) was a German–American physicist who shared the 1955 Nobel Prize in Physics with Willis Eugene Lamb for his accurate determination that the electron magnetic moment was greater than its theoretical value, thus leading to reconsideration of and innovations in quantum electrodynamics.

Biography Polykarp Kusch was born on January 26, 1911, in Blankenburg, Germany, the son of John Mathias Kusch, a Lutheran missionary, and Henrietta van der Haas. In 1912, Kusch and his family emigrated to the United States, where he naturalized as a U.S. citizen in 1922. After graduating from grade school in the Midwest, Kusch attended Case Institute of Technology (CIT) in Cleveland, Ohio (now Case Western Reserve University), where he majored in physics. After graduating from CIT with a B.S. in 1931, Kusch entered the University of Illinois, from which he received his M.S. in 1933. He continued his education at the same alma mater, studying under Francis Wheeler Loomis. For his work in the field of optical molecular spectroscopy, he received his Ph.D. in 1936. In 1937, Kusch moved to Columbia University, where he spent much of his career as a professor and served as its provost for one year in 1970–1971. He worked on molecular beam resonance studies under I. I. Rabi, then discovered the electron anomalous magnetic moment. Many measurements of magnetic moments and hyperfine structure followed. He expanded into chemical physics and continued to publish research on molecular beams. In 1972, he left Columbia to become a professor at the University of Texas at Dallas, remaining there until his retirement in 1982.

Personal life In 1935, Kusch married Edith Starr McRoberts, with whom he had three daughters. Edith died in 1959, and the following year he married Betty Pezzoni. They had two daughters. Kusch House, a residential dormitory for undergraduate students at Case Western Reserve University in Cleveland, Ohio on the South Campus, is named after Kusch. It is located on Carlton Road in Cleveland Heights. The University of Texas at Dallas has a Polykarp Kusch Auditorium with a plaque. Kusch died on March 20, 1993, in Dallas at the age of 82.

Recognition

Memberships

Awards

Publications Rabi, I. I.; Zacharias, J. R.; Millman, S.; Kusch, P. (1938). "A New Method of Measuring Nuclear Magnetic Moment". Physical Review. 53 (4): 318. Bibcode:1938PhRv...53..318R. doi:10.1103/PhysRev.53.318. Rabi, I. I.; Millman, S.; Kusch, P.; Zacharias, J. R. (1939). "The Molecular Beam Resonance Method for Measuring Nuclear Magnetic Moments. The Magnetic Moments of 3Li6, 3Li7 and 9F19". Physical Review. 55 (6): 526–535. Bibcode:1939PhRv...55..526R. doi:10.1103/PhysRev.55.526. Rabi, I. I.; Zacharias, J. R.; Millman, S.; Kusch, P. (1992). "Milestones in Magnetic Resonance: 'A new method of measuring nuclear magnetic moment'. 1938". Journal of Magnetic Resonance Imaging. 2 (2): 131–133. doi:10.1002/jmri.1880020203. PMID 1562763. S2CID 73238886. Kusch, P.; Foley, H. M. (1948). "The Magnetic Moment of the Electron". Physical Review. 74 (3): 250–263. Bibcode:1948PhRv...74..250R. doi:10.1103/PhysRev.74.250. PMID 17820251.

See also List of Case Western Reserve University people

Notes

References

External links Media related to Polykarp Kusch at Wikimedia Commons Polykarp Kusch on Nobelprize.org including his Nobel Lecture, December 12, 1955 The Magnetic Moment of the Electron Browne, Malcolm W. (March 23, 1993). "Polykarp Kusch, Nobel Laureate In Physics in 1955, Is Dead at 82". The New York Times.

Related archival collections Haskell A. Reich collection of student notes, circa 1945-1954, Niels Bohr Library & Archives (includes lecture notes from Polykarp Kusch's courses at Columbia University)

Illustrations

Worked examples

Example 1 — a first encounter with Polykarp Kusch

Start with the simplest possible case. Write down what Polykarp Kusch 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 Polykarp Kusch 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 Polykarp Kusch 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 Polykarp Kusch

In research: Polykarp Kusch 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 Polykarp Kusch 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: Polykarp Kusch is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1911 births, 1993 deaths, 20th-century American physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Polykarp Kusch 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Polykarp Kusch” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Polykarp Kusch in 20 minutes

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

Frequently asked questions

What is Polykarp Kusch in simple terms?

Why does Polykarp Kusch 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 Polykarp Kusch?

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 Polykarp Kusch.