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John Griffith (engineer)

John Griffith (engineer) 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 Griffith (engineer) rather than just read about it. In short: Sir John Purser Griffith (5 October 1848 – 21 October 1938) was a Welsh-born Irish civil engineer and politician. Griffith was educated at Trinity College Dublin and gained a licence in civil engineering in 1868.

John Griffith (engineer) — main illustration
John Griffith (engineer) — illustration

Key takeaways

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

Reference excerpt

Sir John Purser Griffith (5 October 1848 – 21 October 1938) was a Welsh-born Irish civil engineer and politician. Griffith was educated at Trinity College Dublin and gained a licence in civil engineering in 1868. He served a two-year apprenticeship under Dr Bindon Blood Stoney, the Engineer in Chief of the Dublin Port and Docks, before working as assistant to the county surveyor of County Antrim. He returned to Dublin in 1871 and worked as Dr. Stoney's assistant, becoming the Chief Engineer in 1898 before retiring in 1913.

He served as president of the Institution of Civil Engineers in Ireland between 1887 and 1889 and of the Institution of Civil Engineers between 1919 and 1920. He was elected Commissioner of Irish Lights in 1913 and was a member of the Royal Commission on Canals and Waterways between 1906 and 1911. Griffith purchased and drained the bogland at Pollagh, part of the Bog of Allen, a peat fuelled power station was built which drove an excavator, excess peat being taken by the Grand Canal for sale in Dublin. The site was sold to the Turf Development Board in 1936 who used it as a basis for all of their later peat fuelled power stations, the area is now a nature reserve. Griffith received a knighthood in 1911 and became vice-president of the Royal Dublin Society in 1922. He served as an Honorary Professor of Harbour Engineering at Trinity College, his alma mater, and received an honorary M.A.I. degree from the University of Dublin in 1914. From 1922 he was an elected member of the Seanad Éireann until its abolition in 1936. In the 1930s he and his niece Sarah Purser, endowed the Purser Griffith Travelling Scholarship and the Purser Griffith Prize to the two best-performing students in European Art History at University College Dublin. He died at Rathmines Castle in Dublin on 21 October 1938.

References

External links "Griffith, Sir John Purser" . Thom's Irish Who's Who . Dublin: Alexander Thom and Son Ltd. 1923. p. 98 – via Wikisource.

Illustrations

John Griffith (engineer) illustration
John Griffith (engineer): Plaque commemorating Griffith's gift of a ceiling mural at One Great George Street in recognition of the contribution of its members during the First World War
Plaque commemorating Griffith's gift of a ceiling mural at One Great George Street in recognition of the contribution of its members during the First World War

Worked examples

Example 1 — a first encounter with John Griffith (engineer)

Start with the simplest possible case. Write down what John Griffith (engineer) 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 Griffith (engineer) 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 Griffith (engineer) 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 Griffith (engineer)

In research
John Griffith (engineer) 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 Griffith (engineer) 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 Griffith (engineer) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1848 births, 1938 deaths, Alumni of Trinity College Dublin, so understanding it makes those chapters shorter.
In everyday life
Look for John Griffith (engineer) 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 Griffith (engineer) in 20 minutes

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

Frequently asked questions

What is John Griffith (engineer) in simple terms?

Sir John Purser Griffith (5 October 1848 – 21 October 1938) was a Welsh-born Irish civil engineer and politician. Griffith was educated at Trinity College Dublin and gained a licence in civil engineering in 1868.

Why does John Griffith (engineer) 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 Griffith (engineer)?

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 Griffith (engineer).

Tags

  • 1848 births
  • 1938 deaths
  • Alumni of Trinity College Dublin
  • Independent members of Seanad Éireann
  • Irish civil engineers
  • Irish knights
  • Members of the 1922 Seanad
  • Members of the 1925 Seanad
  • Members of the 1928 Seanad
  • Members of the 1931 Seanad
  • Members of the 1934 Seanad
  • Members of the Senate of Southern Ireland

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