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Pierre-Gilles de Gennes

Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes rather than just read about it. In short: Pierre-Gilles de Gennes (French: [pjɛʁ ʒil də ʒɛn]; 24 October 1932 – 18 May 2007) was a French physicist and the Nobel Prize laureate in physics in 1991. Education and early life He was born in Paris, France, and was home-schooled to the age of 12.

Pierre-Gilles de Gennes — main illustration
Pierre-Gilles de Gennes — illustration

Key takeaways

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

Reference excerpt

Pierre-Gilles de Gennes (French: [pjɛʁ ʒil də ʒɛn]; 24 October 1932 – 18 May 2007) was a French physicist and the Nobel Prize laureate in physics in 1991.

Education and early life He was born in Paris, France, and was home-schooled to the age of 12. By the age of 13, he had adopted adult reading habits and was visiting museums. Later, de Gennes studied at the École Normale Supérieure. After leaving the École in 1955, he became a research engineer at the Saclay center of the Commissariat à l'Énergie Atomique, working mainly on neutron scattering and magnetism, with advice from Anatole Abragam and Jacques Friedel. He defended his Ph.D. in 1957 at the University of Paris.

Career and research In 1959, he was a postdoctoral research visitor with Charles Kittel at the University of California, Berkeley, and then spent 27 months in the French Navy. In 1961, he was assistant professor in Orsay and soon started the Orsay group on superconductors. In 1968, he switched to studying liquid crystals. In 1971, he became professor at the Collège de France, and participated in STRASACOL (a joint action of Strasbourg, Saclay and Collège de France) on polymer physics. From 1980 on, he became interested in interfacial problems: the dynamics of wetting and adhesion. He worked on granular materials and on the nature of memory objects in the brain.

Awards and honours Awarded the Fernand Holweck Medal and Prize in 1968. He was awarded the Harvey Prize, Lorentz Medal and Wolf Prize in 1988 and 1990. In 1991, he received the Nobel Prize in Physics. He was then director of the École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI), a post he held from 1976 until his retirement in 2002. P.G. de Gennes has also received the F.A. Cotton Medal for Excellence in Chemical Research of the American Chemical Society in 1997, the Holweck Prize from the joint French and British Physical Society; the Ampere Prize, French Academy of Science; the gold medal from the French CNRS; the Matteuci Medal, Italian Academy; the Harvey Prize, Israel; and polymer awards from both APS and ACS. He was awarded the above-mentioned Nobel Prize for discovering that "methods developed for studying order phenomena in simple systems can be generalized to more complex forms of matter, in particular to liquid crystals and polymers". The Royal Society of Chemistry awards the De Gennes Prize biennially, in his honour. He was elected a Foreign Member of the Royal Society (ForMemRS) in 1984. He was awarded A. Cemal Eringen Medal in 1998.

Personal life

He married Anne-Marie Rouet (born in 1933) in June 1954. They remained married until his death and had three children together: Christian (born 9 December 1954), Dominique (born 6 May 1956) and Marie-Christine (born 11 January 1958). He also had four children with physicist Françoise Brochard-Wyart (born in 1944) who was one of his former doctoral students and then colleague and co-author. The children are: Claire Wyart (born 16 February 1977), Matthieu Wyart (born 24 May 1978), Olivier Wyart (born 3 August 1984) and Marc de Gennes (born 16 January 1991). Professors John Goodby and George Gray noted in an obituary: "Pierre was a man of great charm and humour, capable of making others believe they, too, were wise. We will remember him as an inspirational lecturer and teacher, an authority on Shakespeare, an expert skier who attended conference lectures appropriately attired with skis to hand, and, robed in red, at the Bordeaux liquid crystal conference in 1978, took great delight in being inaugurated as a Vignoble de St Émilion." In 2003 he was one of 22 Nobel Laureates who signed the Humanist Manifesto. On 22 May 2007, his death was made public as official messages and tributes poured in.

Publications

Books

See also History of ESPCI Paris ESPCI Paris

References

External links Media related to Pierre-Gilles de Gennes at Wikimedia Commons Pierre-Gilles de Gennes on Nobelprize.org including the Nobel Lecture, 9 December 1991 Soft Matter

Illustrations

Pierre-Gilles de Gennes illustration
Pierre-Gilles de Gennes: De Gennes in his office at ESPCI Paris, 1988
De Gennes in his office at ESPCI Paris, 1988

Worked examples

Example 1 — a first encounter with Pierre-Gilles de Gennes

Start with the simplest possible case. Write down what Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes

In research
Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes 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
Pierre-Gilles de Gennes is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1932 births, 2007 deaths, Academic staff of ESPCI Paris, so understanding it makes those chapters shorter.
In everyday life
Look for Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Pierre-Gilles de Gennes means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Pierre-Gilles de Gennes out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pierre-Gilles de Gennes in simple terms?

Pierre-Gilles de Gennes (French: [pjɛʁ ʒil də ʒɛn]; 24 October 1932 – 18 May 2007) was a French physicist and the Nobel Prize laureate in physics in 1991. Education and early life He was born in Paris, France, and was home-schooled to the age of 12.

Why does Pierre-Gilles de Gennes 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 Pierre-Gilles de Gennes?

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 Pierre-Gilles de Gennes.

Tags

  • 1932 births
  • 2007 deaths
  • Academic staff of ESPCI Paris
  • Academic staff of the Collège de France
  • Experimental physicists
  • Fellows of the American Physical Society
  • Fellows of the Australian Academy of Science
  • Foreign members of the Royal Society
  • Foreign members of the Russian Academy of Sciences
  • French Nobel laureates
  • French fellows of the Royal Society
  • French materials scientists

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