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astronomy

Harry Messel

Harry Messel 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 Harry Messel rather than just read about it. In short: Harry Messel, , (3 March 1922 – 8 July 2015) was a Canadian-born Australian physicist and educator. Life and work Messel was born in Canada to Ukrainian parents.

Key takeaways

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

Reference excerpt

Harry Messel, , (3 March 1922 – 8 July 2015) was a Canadian-born Australian physicist and educator.

Life and work Messel was born in Canada to Ukrainian parents. He was born in Levine Siding in Manitoba, and brought up in Rivers, Manitoba. He was accepted into the Royal Military College of Canada. During the Second World War he served as a paratrooper with the Canadian Forces. He entered Queen's University in Kingston, Ontario, in 1946, enrolling in both Honours Engineering Physics and an Honours Degree in Mathematics. After fellowships at University of St Andrews and Dublin Institute for Advanced Studies, Messel moved to Australia in 1951. He lectured in mathematical physics at the University of Adelaide 1951–52, before being appointed in 1952 as Professor of Physics and Head of the School of Physics at the University of Sydney, a position he held for 35 years until his retirement in 1987. In 1952 he established the Nuclear Research Foundation, later known as the Science Foundation for Physics. Messel was also Chancellor and CEO of Bond University 1992–1997. When the Soviet satellite, Sputnik 2, passed over the Southern Polar region in 1958, Messel recorded the encrypted data while the satellite was at its apogee of 1671 km. However, the Soviets, who were unable to collect the data themselves, refused to release the interpreting code. When they asked Messel for the data, he told them to "go to hell". In 1958 Professor Messel started the International Science School (ISS), which aims to encourage scientifically capable and interested students in their final two years of school to extend their knowledge and apply it to achieve progress. He frequently stated his discontent when sportsmen were praised and hailed whereas the next generation of scientists to change and run the world were given little to no encouragement. Since its inception, over 4,000 scholars have attended the ISS. The program runs once every two years with close to 150 students from up to 10 countries staying at the Women's College for two weeks, attending lectures and participating in activities around the University of Sydney.

Honours Messel was appointed a Commander of the Order of the British Empire (CBE) in the 1979 New Year's Honours list; and a Companion of the Order of Australia (AC) in the 2006 Australia Day Honours 2006 for his service to Australian science and to education as an outstanding educator raising awareness of the importance of the study of science and in particular physics, for instrumental contributions to improving science teaching in schools, and for conservation advocacy relating to endangered crocodile and alligator species. In 2014, Messel, along with Simon McKeon, was awarded the Australian Academy of Science's Academy Medal, which recognises scientific contributions other than research. The award to Messel was made "in recognition of his conspicuous and enduring service to the cause of science in Australia".

Personal life Messel was married to Patrica Pegram, a nurse from Sussex, England whom he met in Dublin. They had three daughters, Naomi, Wendy and Iona.

References

External links Ri Aus - people in Science

Worked examples

Example 1 — a first encounter with Harry Messel

Start with the simplest possible case. Write down what Harry Messel 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 Harry Messel 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 Harry Messel 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 Harry Messel

In research
Harry Messel 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 Harry Messel 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
Harry Messel is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1922 births, 2015 deaths, Academic staff of the University of Adelaide, so understanding it makes those chapters shorter.
In everyday life
Look for Harry Messel 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 Harry Messel in 20 minutes

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

Frequently asked questions

What is Harry Messel in simple terms?

Harry Messel, , (3 March 1922 – 8 July 2015) was a Canadian-born Australian physicist and educator. Life and work Messel was born in Canada to Ukrainian parents.

Why does Harry Messel 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 Harry Messel?

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 Harry Messel.

Tags

  • 1922 births
  • 2015 deaths
  • Academic staff of the University of Adelaide
  • Academic staff of the University of Sydney
  • Academics of the Dublin Institute for Advanced Studies
  • Academics of the University of St Andrews
  • Australian people of Ukrainian descent
  • Australian physicists
  • Canadian emigrants to Australia
  • Chancellors of Bond University
  • Commanders of the Order of the British Empire
  • Companions of the Order of Australia

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