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Mervyn A. Ellison

Mervyn A. Ellison is a astronomy 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 Mervyn A. Ellison rather than just read about it. In short: Mervyn Archdall Ellison (5 May 1909 – 12 September 1963) was an Irish astronomer. He was recognized as a world authority on solar physics and the effect of solar flares on the Earth.

Key takeaways

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

Reference excerpt

Mervyn Archdall Ellison (5 May 1909 – 12 September 1963) was an Irish astronomer. He was recognized as a world authority on solar physics and the effect of solar flares on the Earth.

Life He was born at Fethard-on-Sea in County Wexford, Ireland, the third son of Reverend William Frederick Archdall Ellison, and was home tutored until the age of nine when his father became the director of Armagh Observatory. Mervyn was entered into the Royal School, Armagh, and during his spare time, he developed an interest in astronomy. In 1927 he began his undergraduate work at Trinity College Dublin, where he studied physics and was elected a Scholar. On 9 November 1928 he was elected to the fellowship of the Royal Astronomical Society. He also served as president of the University Philosophical Society in 1931-32. In 1931–32 he worked on radium emanations for the Dublin hospitals under a Fitzgerald Research Scholarship. He was awarded a M.Sc. in 1932 and a Sc.D. in 1944. Ellison became senior science master at Sherborne School in Dorset, 1933, then married Patricia Herron in 1934. The couple had two daughters and a son. On 29 May 1935 Ellison joined the British Astronomical Association. He also completed his own spectrohelioscope during this period, to study the Sun following the sunspot minimum. With the start of the world war, he organized an Air Cadet Training Corps, then joined the Operational Research Group at the Admiralty. In 1946 he became a member of the International Astronomical Union. The following year, he joined the Royal Observatory, Edinburgh, where he continued studies of solar activity, including flares and prominences. In 1948 he was elected a Fellow of the Royal Society of Edinburgh. He remained at the observatory for eleven years and published multiple scientific papers on his work. He also was invited to lecture on astronomy, and gave radio and television interviews about solar activity. Mary Brück completed her PhD with him in 1950. For five years he was joint editor of The Observatory. He also played a leading role in the scientific work during the International Geophysical Year, serving as a solar reporter and working to erect a heliograph at the Royal Observatory, Cape of Good Hope. Ellison published the book The Sun and its Influence in 1955. In 1958 he was appointed director of the Dunsink Observatory, and worked on several astronomical publications. He fell ill in 1963 and died. At the time of his death he was senior professor of Astronomy at the Dublin Institute for Advanced Studies. Ellison crater on the Moon is named after him. (Note that the asteroid 10177 Ellison is not named after him, but rather the author Harlan Ellison.)

Family He married Patricia Elizabeth Goddard Herron in 1934.

References

Worked examples

Example 1 — a first encounter with Mervyn A. Ellison

Start with the simplest possible case. Write down what Mervyn A. Ellison claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Mervyn A. Ellison 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 Mervyn A. Ellison 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 Mervyn A. Ellison

In research
Mervyn A. Ellison appears in astronomy 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 Mervyn A. Ellison 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
Mervyn A. Ellison is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1909 births, 1963 deaths, 20th-century Irish astronomers, so understanding it makes those chapters shorter.
In everyday life
Look for Mervyn A. Ellison 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 Mervyn A. Ellison in 20 minutes

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

Frequently asked questions

What is Mervyn A. Ellison in simple terms?

Mervyn Archdall Ellison (5 May 1909 – 12 September 1963) was an Irish astronomer. He was recognized as a world authority on solar physics and the effect of solar flares on the Earth.

Why does Mervyn A. Ellison matter?

Because it connects several astronomy 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 Mervyn A. Ellison?

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 Mervyn A. Ellison.

Tags

  • 1909 births
  • 1963 deaths
  • 20th-century Irish astronomers
  • Academics of the Dublin Institute for Advanced Studies
  • Alumni of Trinity College Dublin
  • Directors of Dunsink Observatory
  • People educated at The Royal School, Armagh
  • People from Fethard-on-Sea
  • Scholars of Trinity College Dublin
  • Scientists from County Wexford

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