physics

Stewart Duke-Elder

Stewart Duke-Elder 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 Stewart Duke-Elder rather than just read about it. In short: Sir William Stewart Duke-Elder (22 April 1898 – 27 March 1978) was a Scottish ophthalmologist, a dominant force in his field for more than a quarter of a century. Life Duke-Elder was born in the manse in Tealing near Dundee.

Key takeaways

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

Reference excerpt

Sir William Stewart Duke-Elder (22 April 1898 – 27 March 1978) was a Scottish ophthalmologist, a dominant force in his field for more than a quarter of a century.

Life Duke-Elder was born in the manse in Tealing near Dundee. His father, Rev Neil Stewart Elder, was the village minister of the Free Church of Scotland. His mother was Isabelle Duke, daughter of Rev John Duke of the Free Church in Campsie, Stirlingshire. Duke-Elder was educated at Morgan Academy in Dundee, and was school dux for 1914–1915. Duke-Elder entered the University of St Andrews in 1915 on scholarship, and graduated in 1919 with a BSc in Physiology and MA (Hons) in Natural Sciences. He graduated from the University of St Andrews School of Medicine in 1923 with an MB ChB. In 1925, he earned an MD from St Andrews for his dissertation on 'Reaction of the eye to changes in osmotic pressure of the blood'.

In 1927, Duke-Elder earned a DSc from St Andrews for his thesis on "The nature of the intraocular fluids and the pressure equilibrium in the eye". Duke-Elder produced seven volumes of Textbook of Ophthalmology and fifteen volumes of System of Ophthalmology, along with many other textbooks and scientific papers that provided the educational foundation for most of the world's ophthalmologists. This monumental contribution to medical literature earned Duke-Elder the title of Fellow of the Royal Society in 1960. In addition to his own writings, Duke-Elder served for many years as editor and chairman of the editorial committee of the British Journal of Ophthalmology and Ophthalmic Literature and he was instrumental in the formation and research direction of the Institute of Ophthalmology, formerly the Central London Ophthalmic Hospital, now part of the University College London. He was knighted in the 1933 King's Birthday Honours List, and subsequently earned many more honours, including being appointed at a Knight Commander of the Royal Victorian Order (KCVO) in the 1946 New Year Honours and being upgraded to the rank of Knight Grand Cross of the Royal Victorian Order (GCVO) in the 1958 New Year Honours serving as the Surgeon-Oculist to King Edward VIII, George VI and Queen Elizabeth II. In 1946 he formed the Faculty of Ophthalmologists. Duke-Elder was awarded the 1957 Lister Medal for his contributions to surgical science. The corresponding Lister Oration, given at the Royal College of Surgeons of England, was delivered on 28 March 1958, and was titled 'The Emergence of Vision in the Animal World'. Duke-Elder had a long and successful marriage to his wife Phyllis, who had been his medical assistant. They had no children. Duke-Elder died at his home at St John's Wood in London on 27 March 1978.

Publications Textbook of Ophthalmology (1954) A Century of International Ophthalmology (1958) Neuro-ophthalmology (1971) Ocular Motility and Strabismus (1973) System of Ophthalmology (multiple editions) Practice of refraction (multiple editions)

References

External links Obituary from The American Society of Cataract and Refractive Surgery

Illustrations

Worked examples

Example 1 — a first encounter with Stewart Duke-Elder

Start with the simplest possible case. Write down what Stewart Duke-Elder 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 Stewart Duke-Elder 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 Stewart Duke-Elder 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 Stewart Duke-Elder

In research: Stewart Duke-Elder 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 Stewart Duke-Elder 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: Stewart Duke-Elder is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1898 births, 1978 deaths, 20th-century Scottish medical doctors, so understanding it makes those chapters shorter.
In everyday life: Look for Stewart Duke-Elder 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 Stewart Duke-Elder in 20 minutes

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

Frequently asked questions

What is Stewart Duke-Elder in simple terms?

Sir William Stewart Duke-Elder (22 April 1898 – 27 March 1978) was a Scottish ophthalmologist, a dominant force in his field for more than a quarter of a century. Life Duke-Elder was born in the manse in Tealing near Dundee.

Why does Stewart Duke-Elder 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 Stewart Duke-Elder?

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 Stewart Duke-Elder.