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J. Denis Summers-Smith

J. Denis Summers-Smith is a engineering 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 J. Denis Summers-Smith rather than just read about it. In short: James Denis Summers-Smith (25 October 1920 – 5 May 2020) was a British ornithologist and mechanical engineer, a specialist both in sparrows and in industrial tribology. Early life Summers-Smith was raised in Glasgow, where he was born in 1920.

Key takeaways

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

Reference excerpt

James Denis Summers-Smith (25 October 1920 – 5 May 2020) was a British ornithologist and mechanical engineer, a specialist both in sparrows and in industrial tribology.

Early life Summers-Smith was raised in Glasgow, where he was born in 1920. He spent childhood holidays in County Donegal, in northwestern Ireland, where one of his uncles, a country parson and a naturalist, taught him about birds. For nearly six years of World War II, Summers-Smith was an intelligence officer in the British Army. He received his commission in 1940, and reached the rank of captain. He served with the 9th Battalion, The Cameronians, stationed on the east coast of England. During that time he had little time for birdwatching, except when surveying "such likely spots for invasion" as coastal marshes in Suffolk. Summers-Smith was among the second wave of troops involved in the D-Day landings of 6 June 1944. He was badly wounded in a later action in Normandy, as a result of which he spent 18 months in hospital.

Career After the war, Summers-Smith was employed as a mechanical engineer by Imperial Chemical Industries. He obtained several degrees in engineering around this time, and a PhD in physics in 1953. In 1975, Summers-Smith received one of the three annual Tribology Silver Medals given by the Institution of Mechanical Engineers. His job as an engineer allowed him to travel widely, and he used trips abroad as opportunities to study sparrows.

Ornithology Summers-Smith began his study of the house sparrow in 1947. He decided to make a serious study of a particular bird species, and chose the house sparrow because of the difficulty of travel at the time, under post-war rationing. Summers-Smith has studied the house sparrow in Highclere, Hampshire; in Hartburn, County Durham; and latterly at Guisborough in North Yorkshire, where he settled in 1961. During these studies, he was questioned by a policeman on the street twice for looking around yards with binoculars at early hours. Summers-Smith was a founding member of his local bird club (The Teesmouth Bird Club) in 1960, and he wrote the instructions for the British Trust for Ornithology's first Common Bird Census in 1962. His study of the house sparrow resulted not only in a number of papers in respected journals, but also in his 1963 monograph The House Sparrow, published as part of the New Naturalist Monographs series. After The House Sparrow was published, Summers-Smith began studying the house sparrow's relatives in the genus Passer. Over the course of these studies, he visited dozens of countries, and made observations on all the Passer species (recognised in his classification) except the Socotra sparrow. This research into the sparrows as a whole resulted in a monograph on the genus Passer, published in 1988 as The Sparrows, and one on the Eurasian tree sparrow, the 1995 The Tree Sparrow, both of which were illustrated by Robert Gillmor. He also wrote In Search of Sparrows, an account of his worldwide travels researching sparrows. In 1992, Summers-Smith received the Zoological Society of London's Stamford Raffles Award, for his "world-renowned work on sparrows". In The House Sparrow, Summers-Smith predicted that the house sparrow would have "a bright future", but instead it went into a severe decline in many parts of the world, beginning in the 1970s. Summers-Smith studied this decline extensively, but he called it "one of the most remarkable wildlife mysteries of the last fifty years". When The Independent offered a £5,000 prize for an explanation of the decline of the house sparrow in 2000, Summers-Smith acted as a referee. In 2008, the prize was almost awarded to Dr. Kate Vincent of De Montfort University and several colleagues, who attributed the decline of the house sparrow to falling insect numbers. In 2009, Summers-Smith was the author of the section of the Handbook of the Birds of the World on the family Passeridae.

Bibliography The House Sparrow, 1963 Introduction to Tribology in Industry, 1970 Tribology Problems in Process Industries, 1970 Granivorous Birds in the Agricultural Landscape, 1980 (editor) The Sparrows: a Study of the Genus Passer, pub. T. & A.D. Poyser, 1988, ISBN 0-85661-048-8 In Search of Sparrows, 1992 An Introductory Guide to Industrial Tribology, 1994 The Tree Sparrow, 1995 A Tribology Casebook: a Lifetime in Tribology, 1997 Mechanical Seal Practice for Improved Performance, 2002 (editor) On Sparrows and Man: a Love-Hate Relationship, 2006 "Family Passeridae (Old World Sparrows)" in Handbook of the Birds of the World, volume 14, 2009

References

Worked examples

Example 1 — a first encounter with J. Denis Summers-Smith

Start with the simplest possible case. Write down what J. Denis Summers-Smith claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 J. Denis Summers-Smith 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 J. Denis Summers-Smith 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 J. Denis Summers-Smith

In research
J. Denis Summers-Smith appears in engineering 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 J. Denis Summers-Smith 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
J. Denis Summers-Smith is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1920 births, 2020 deaths, British Army personnel of World War II, so understanding it makes those chapters shorter.
In everyday life
Look for J. Denis Summers-Smith 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 J. Denis Summers-Smith in 20 minutes

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

Frequently asked questions

What is J. Denis Summers-Smith in simple terms?

James Denis Summers-Smith (25 October 1920 – 5 May 2020) was a British ornithologist and mechanical engineer, a specialist both in sparrows and in industrial tribology. Early life Summers-Smith was raised in Glasgow, where he was born in 1920.

Why does J. Denis Summers-Smith matter?

Because it connects several engineering 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 J. Denis Summers-Smith?

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 J. Denis Summers-Smith.

Tags

  • 1920 births
  • 2020 deaths
  • British Army personnel of World War II
  • British ornithological writers
  • Cameronians officers
  • Engineers from Glasgow
  • Imperial Chemical Industries people
  • Military personnel from Glasgow
  • New Naturalist writers
  • Scottish mechanical engineers
  • Scottish ornithologists
  • Tribologists

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