engineering

John Chaloner Smith

John Chaloner 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 John Chaloner Smith rather than just read about it. In short: John Chaloner Smith (19 August 1827 – 13 March 1895) was an Irish civil engineer, remembered as collector of and writer on British mezzotints. Life Smith was born in Dublin in 1827.

Key takeaways

John Chaloner 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 John Chaloner Smith to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of John Chaloner Smith from memory before moving on to harder problems.

Reference excerpt

John Chaloner Smith (19 August 1827 – 13 March 1895) was an Irish civil engineer, remembered as collector of and writer on British mezzotints.

Life Smith was born in Dublin in 1827. His father was a proctor of the ecclesiastical courts, and married a granddaughter of Travers Hartley, M.P. for Dublin in the Irish parliament. Chaloner Smith was admitted to Trinity College, Dublin, in 1846, and in 1849 graduated B.A. He was articled to George Willoughby Hemans the engineer, and in 1857 was appointed engineer to the Waterford and Limerick Railway. In 1868 he took a similar position in the Dublin, Wicklow and Wexford Railway, and held it till 1894. He carried out some major extensions of the line, and was mainly responsible for the Loopline Bridge crossing the River Liffey, connecting the Great Northern and South-Eastern railways of Ireland. He died at Bray, County Wicklow.

Works His British Mezzotinto Portraits … with Biographical Notes (London, 1878–84, 4 pts.) consists of a full catalogue of plates executed before 1820, with 125 autotypes from plates in Smith's possession. The latter were also issued separately. This "remains the definitive catalogue of the subject". The print-room at the British Museum contains an interleaved copy with manuscript notes. Smith was a collector of engravings, principally mezzotints, which were sold after the completion of his book in sales between 1887 and 1896. Some 300 of them, especially those by Irish printmakers, were purchased for the National Gallery of Ireland in Dublin through Sir Edward Guinness, and the British Museum bought 106. Chaloner Smith took an interest in the financial relations between England and Ireland, and published pamphlets on the subject. Just before his death he was examined before the Royal Commission which was appointed to consider the question.

Notes

References "Smith, John Chaloner" . Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900. Antony Griffiths (ed), Landmarks in Print Collecting - Connoisseurs and Donors at the British Museum since 1753, p. 138, 1996, British Museum Press, ISBN 0714126098 Attribution This article incorporates text from a publication now in the public domain: "Smith, John Chaloner". Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900.

Worked examples

Example 1 — a first encounter with John Chaloner Smith

Start with the simplest possible case. Write down what John Chaloner 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 John Chaloner 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 John Chaloner 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 John Chaloner Smith

In research: John Chaloner 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 John Chaloner 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: John Chaloner Smith is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1827 births, 1895 deaths, 19th-century Irish engineers, so understanding it makes those chapters shorter.
In everyday life: Look for John Chaloner 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 John Chaloner Smith in 20 minutes

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

Frequently asked questions

What is John Chaloner Smith in simple terms?

John Chaloner Smith (19 August 1827 – 13 March 1895) was an Irish civil engineer, remembered as collector of and writer on British mezzotints. Life Smith was born in Dublin in 1827.

Why does John Chaloner 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 John Chaloner 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 John Chaloner Smith.