astronomy

Hilary Stevenson

Hilary Stevenson 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 Hilary Stevenson rather than just read about it. In short: Hilary Stevenson (12 January 1947 – 5 October 1994) was a food scientist and professor from Northern Ireland who made significant scientific contributions to the study of food irradiation in the 1980s and 1990s. Early life Mary Hill (Hilary) Morrison was born in Coleraine, County Londonderry on 12 January 1947.

Key takeaways

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

Reference excerpt

Hilary Stevenson (12 January 1947 – 5 October 1994) was a food scientist and professor from Northern Ireland who made significant scientific contributions to the study of food irradiation in the 1980s and 1990s.

Early life Mary Hill (Hilary) Morrison was born in Coleraine, County Londonderry on 12 January 1947. She was the only daughter of James Stewart Morrison and Elizabeth Morrison (née Martin). She was raised at Drumaduan in the townland of Ballyrashane and attended Coleraine High School.

Education Stevenson attended Queen's University Belfast where she graduated with first class honours in Chemistry in 1969 and Agriculture in 1970. She completed her M.Sc. in Food Science and Microbiology in 1971 from the University of Strathclyde. By 1981 she completed her doctoral studies, with her PhD dissertation focusing on metabolism of minerals by poultry.

Career Stevenson joined the Department of Agriculture for Northern Ireland (DANI) after her undergraduate degrees, becoming an agricultural inspector. At this time she also lectured at the Loughry College of Agriculture and Food Technology. By 1974 she was promoted to senior scientific officer and had transferred to the Agricultural Chemistry Research Division. At this time she took up a position as university lecturer in the Department of Agriculture and Food Science at Queen's University Belfast.

Research contributions In the early years of her research career, Stevenson focused on the vitamin content of peas before and after processing, later shifting her interest to the absorption of minerals by sheep. By the 1980s, her research had narrowed to poultry nutrition, publishing work on chickens and geese in UK agricultural journals such as British Poultry Science and the Journal of the Science of Food and Agriculture. Stevenson's most significant scientific contribution was her research on food irradiation, which she took up in the 1980s. She became an influential expert in the area, publishing over forty papers on the topic, collaborating with international partners on research studies, and organizing gatherings under the auspices of the United Nations. Her work or irradiation was recognized in 1993 when she was appointed to the Order of the British Empire (OBE). Stevenson was an active member of several professional organizations, including the Northern Ireland branch of the Institute of Food Science and Technology, the Nutrition Society, the journal of British Poultry Science, and was a fellow of the Royal Society of Chemistry.

Personal life She married Noel Stevenson in 1976 and the couple lived in Lisburn, County Antrim. She died at the age of 47 on 5 October 1994, after a prolonged illness.

Selected works

Books Johnson, D.E. and M.H. Stevenson, editors. Food Irradiation and the Chemist: the proceedings of an international symposium organized by the Food Chemistry Group of the Royal Society of Chemistry as part of the Annual Chemical Congress 1990: Queen's University Belfast, 10–11 April 1990.Cambridge: Royal Society of Chemistry, 1990. ISBN 0851868576

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Hilary Stevenson

Start with the simplest possible case. Write down what Hilary Stevenson 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 Hilary Stevenson 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 Hilary Stevenson 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 Hilary Stevenson

In research: Hilary Stevenson 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 Hilary Stevenson 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: Hilary Stevenson is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1947 births, 1994 deaths, 20th-century educators from Northern Ireland, so understanding it makes those chapters shorter.
In everyday life: Look for Hilary Stevenson 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 Hilary Stevenson in 20 minutes

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

Frequently asked questions

What is Hilary Stevenson in simple terms?

Why does Hilary Stevenson 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 Hilary Stevenson?

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 Hilary Stevenson.