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John D. Barrow

John D. Barrow 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 John D. Barrow rather than just read about it. In short: John David Barrow (29 November 1952 – 26 September 2020) was an English cosmologist, theoretical physicist, and mathematician. He served as Gresham Professor of Geometry at Gresham College from 2008 to 2011.

John D. Barrow — main illustration
John D. Barrow — illustration

Key takeaways

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

Reference excerpt

John David Barrow (29 November 1952 – 26 September 2020) was an English cosmologist, theoretical physicist, and mathematician. He served as Gresham Professor of Geometry at Gresham College from 2008 to 2011. Barrow was also a writer of popular science and an amateur playwright.

Education Barrow attended Barham Primary School in Wembley until 1964 and Ealing Grammar School for Boys from 1964 to 1971 and obtained his first degree in mathematics and physics from Van Mildert College at the University of Durham in 1974. In 1977, he completed his doctorate in astrophysics at Magdalen College, Oxford, supervised by Dennis William Sciama.

Career and research Barrow was a Junior Research Lecturer at Christ Church, Oxford, from 1977 to 1981. He completed two postdoctoral years as a Miller Research Fellow in astronomy at the University of California, Berkeley, as a Commonwealth Lindemann Fellow (1977–8) and Miller Fellow (1980–1). In 1981 he joined the University of Sussex and rose to become Professor and Director of the Astronomy Centre. In 1999, he became Professor in the Department of Applied Mathematics and Theoretical Physics and a fellow in Clare Hall at Cambridge University. From 2003 to 2007 he was Gresham Professor of Astronomy at Gresham College, London, and he was appointed as Gresham Professor of Geometry from 2008 to 2011; only one person has previously held two different Gresham chairs. From 1999, he directed the Millennium Mathematics Project (MMP) at the University of Cambridge. This is an outreach and education programme to improve the appreciation, teaching and learning of mathematics and its applications. In 2006 it was awarded the Queen's Anniversary Prize for Educational Achievement by Queen Elizabeth II at Buckingham Palace. In addition to having published more than 500 journal articles, Barrow co-wrote (with Frank J. Tipler) The Anthropic Cosmological Principle, a work on the history of the ideas, specifically intelligent design and teleology, as well as a treatise on astrophysics. He also published 22 books for general readers, beginning with his 1983 The Left Hand of Creation. His books summarise the state of the affairs of physical questions, often in the form of compendia of a large number of facts assembled from the works of great physicists, such as Paul Dirac and Arthur Eddington. Barrow's approach to philosophical issues posed by physical cosmology made his books accessible to general readers. For example, Barrow introduced a memorable paradox, which he called "the Groucho Marx Effect" (see Russell-like paradoxes). Here, he quotes Groucho Marx: "I wouldn't want to belong to any club that would accept me as a member". Applying this to problems in cosmology, Barrow stated: "A universe simple enough to be understood is too simple to produce a mind capable of understanding it". Barrow lectured at 10 Downing Street, Windsor Castle, and the Vatican, as well as to the general public. In 2002, his play Infinities premiered in Milan, played in Valencia, and won the Premi Ubu 2002 Italian Theatre Prize. At the 2006 'Origins of the Universe' conference in Cambridge, organized by Stephen Hawking, Barrow debated the anthropic principle with Martin Rees. The proceedings were later published in Nature.

Honours Barrow was awarded the 2006 Templeton Prize for "Progress Toward Research or Discoveries about Spiritual Realities" for his "writings about the relationship between life and the universe, and the nature of human understanding [which] have created new perspectives on questions of ultimate concern to science and religion". He was a member of a United Reformed Church, which he described as teaching "a traditional deistic picture of the universe". In 2008, the Royal Society awarded him the Faraday Prize. He was elected a Fellow of the Royal Society (London) in 2003 and elected Fellow of the Academia Europaea in 2009. He has received Honorary Doctorates from the Universities of Hertfordshire, Sussex, Durham, South Wales, and Szczecin, and was an Honorary Professor at the University of Nanjing. He was an Honorary Fellow of Van Mildert College (Durham University) and of Gresham College (London). He was a Centenary Gifford Lecturer at the University of Glasgow in 1989. He was awarded the Dirac Prize and Gold Medal of the Institute of Physics in 2015 and the Gold Medal of the Royal Astronomical Society in 2016.

Barrow scale The Barrow scale proposed by him is a measurement of the technological level and mastery of civilizations based upon the smallest structures that they can manipulate. It is a complement to the Kardashev scale, which is based upon the largest structures that can be manipulated.

Death Barrow died on 26 September 2020 from colon cancer, at the age of 67.

Publications In English:

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Illustrations

John D. Barrow illustration

Worked examples

Example 1 — a first encounter with John D. Barrow

Start with the simplest possible case. Write down what John D. Barrow 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 John D. Barrow 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 John D. Barrow 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 John D. Barrow

In research
John D. Barrow 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 John D. Barrow 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
John D. Barrow is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1952 births, 2020 deaths, 20th-century British physicists, so understanding it makes those chapters shorter.
In everyday life
Look for John D. Barrow 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 John D. Barrow in 20 minutes

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

Frequently asked questions

What is John D. Barrow in simple terms?

John David Barrow (29 November 1952 – 26 September 2020) was an English cosmologist, theoretical physicist, and mathematician. He served as Gresham Professor of Geometry at Gresham College from 2008 to 2011.

Why does John D. Barrow 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 John D. Barrow?

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 John D. Barrow.

Tags

  • 1952 births
  • 2020 deaths
  • 20th-century British physicists
  • 21st-century British physicists
  • Academics of Gresham College
  • Alumni of Magdalen College, Oxford
  • Alumni of Van Mildert College, Durham
  • British cosmologists
  • British fellows of the Royal Society
  • British theoretical physicists
  • Cambridge mathematicians
  • Deaths from colorectal cancer in England

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