physics

Michael Fisher

Michael Fisher 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 Michael Fisher rather than just read about it. In short: Michael Ellis Fisher (3 September 1931 – 26 November 2021) was an English physicist, as well as chemist and mathematician, known for his many seminal contributions to statistical physics, including but not restricted to the theory of phase transitions and critical phenomena. He was the Horace White Professor of Chemistry, Physics, and Mathematics at Cornell University.

Key takeaways

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

Reference excerpt

Michael Ellis Fisher (3 September 1931 – 26 November 2021) was an English physicist, as well as chemist and mathematician, known for his many seminal contributions to statistical physics, including but not restricted to the theory of phase transitions and critical phenomena. He was the Horace White Professor of Chemistry, Physics, and Mathematics at Cornell University. Later he moved to the University of Maryland College of Computer, Mathematical, and Natural Sciences, where he was University System of Maryland Regents Professor, a Distinguished University Professor and Distinguished Scholar-Teacher.

Academic background Michael E. Fisher received his BSc from King's College London in 1951, where he also earned a PhD in physics in 1957, studying analogue computing under Donald MacCrimmon MacKay. He was appointed to the faculty as a lecturer the following year, becoming a full professor in 1965. In 1966 he moved to Cornell University where he became professor of chemistry, physics, and mathematics, chairing the chemistry department from 1975 to 1978. In 1971, he became a Fellow of the Royal Society. In 1973, he and Jack Kiefer were the first two Cornell faculty elected as Horace White Professors. Fisher was elected Secretary of the Cornell University Senate. In 1983, he was elected a foreign associate of the United States National Academy of Sciences, chemistry section, as he had remained a citizen of the United Kingdom. Since 1987 he was at the Institute for Physical Science and Technology, which is part of the University of Maryland College of Computer, Mathematical, and Natural Sciences. He retired in 2012. Fisher lived in Ithaca, N.Y., and subsequently in Maryland, with his wife Sorrel. They had four children. Two of them are also theoretical physicists: Daniel S. Fisher is professor of Applied Physics at Stanford, while Matthew P. A. Fisher is professor of Physics at the University of California, Santa Barbara.

Wolf Prize Fisher together with Kenneth G. Wilson and Leo Kadanoff won the Wolf Prize in 1980. The prize was awarded with the following comment:"Professor Michael E. Fisher has been an extraordinarily productive scientist, and one still at the height of his powers and creativity. Fisher's major contributions have been in equilibrium statistical mechanics, and have spanned the full range of that subject. He was mainly responsible for bringing together, and teaching a common language to chemists and physicists working on diverse problems of phase transitions."

Boltzmann Medal In 1983, Fisher was awarded the Boltzmann Medal "for his many illuminating contributions to phase transitions and critical phenomena during the past 25 years"

Lars Onsager Prize Fisher won the Lars Onsager Prize in 1995 "for his numerous and seminal contributions to statistical mechanics, including but not restricted to the theory of phase transitions and critical phenomena, scaling laws, critical exponents, finite size effects, and the application of the renormalization group to many of the above problems" (official laudatio).

Award and honours Guggenheim Fellowship (1970) Irving Langmuir Prize of the American Physical Society (1971) Fellow of the American Academy of Arts and Sciences (1979) Guthrie Medal and Prize from the Institute of Physics (1980) Wolf Prize (1980) Michelson–Morley Award from Case Western Reserve University (1982) Boltzmann Medal of the International Union of Pure and Applied Physics (1983) Foreign associate of the United States National Academy of Sciences (1983) NAS Award for Scientific Reviewing of the National Academy of Sciences (1983) Member of the American Philosophical Society (1993) Lars Onsager Prize of American Physical Society (1995) Royal Medal in physics (2005): 2009 BBVA Foundation Frontiers of Knowledge Award in Basic Sciences (co-winner with Richard Zare); see 2015 Rudranath Capildeo Prize for Applied Sciences and Technology-Gold, awarded by the Trinidad and Tobago's National Institute of Higher Education, Research, Science and Technology (NIHERST)

References

Sources N. David Mermin, "My Life with Fisher", J. Stat. Phys. 110, 467–473 (2003); see also.

External links Homepage at University of Maryland Wolf prize citation Boltzmann medal citation Lars Onsager prize citation BBVA award citation Michael Fisher at the Mathematics Genealogy Project

Worked examples

Example 1 — a first encounter with Michael Fisher

Start with the simplest possible case. Write down what Michael Fisher 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 Michael Fisher 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 Michael Fisher 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 Michael Fisher

In research: Michael Fisher 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 Michael Fisher 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: Michael Fisher is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1931 births, 2021 deaths, Alumni of King's College London, so understanding it makes those chapters shorter.
In everyday life: Look for Michael Fisher 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 Michael Fisher in 20 minutes

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

Frequently asked questions

What is Michael Fisher in simple terms?

Why does Michael Fisher 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 Michael Fisher?

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 Michael Fisher.