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astronomy

John Crown

John Crown 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 John Crown rather than just read about it. In short: John Paul Crown (born 1 March 1957) is an Irish consultant oncologist and former politician who served as a Senator for the National University constituency from 2011 to 2016. Background and education Born in Brooklyn, New York to Irish emigrant parents, Crown's family returned to Ireland in 1967, and attended Synge Street CBS and Terenure College.

John Crown — main illustration
John Crown — illustration

Key takeaways

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

Reference excerpt

John Paul Crown (born 1 March 1957) is an Irish consultant oncologist and former politician who served as a Senator for the National University constituency from 2011 to 2016.

Background and education Born in Brooklyn, New York to Irish emigrant parents, Crown's family returned to Ireland in 1967, and attended Synge Street CBS and Terenure College. Crown received his medical training in Ireland, the United Kingdom and the United States. A graduate of University College Dublin and the State University of New York, and holds degrees in medicine, science and business administration. His postdoctoral training took place at Guy's Hospital in London and St. James's Hospital in Dublin. He completed his training in oncology in New York at Mount Sinai Medical Center and the Memorial Sloan–Kettering Cancer Center. He held the post of assistant professor at Weill Cornell Medical College of Cornell University until 1993 when he returned to Ireland, becoming a consultant at two Dublin hospitals: St. Vincent's and St. Luke's. He holds professorships in cancer research from Dublin City University and University College Dublin. Crown has worked to reform cancer treatment in Ireland as chairman of molecular therapeutics for Cancer Ireland, and founder of the Ireland Co-operative Oncology Research Group (ICORG). Crown, along with his colleagues developed translational breast cancer research. Crown became a vocal critic of the health policy of the Irish government led by Bertie Ahern and his successor Brian Cowen, and of the Minister for Health Mary Harney. In November 2007 he was involved in a controversy with the state broadcaster RTÉ when he was unexpectedly dropped from a discussion panel on The Late Late Show. The broadcaster denied that pressure had been applied by the government, but the decision was attacked by opposition politicians as "censorship and a denial of free speech". In May 2021, he was admitted as a member of the Royal Irish Academy.

Seanad election In March 2011 Crown announced that he would stand for election to Seanad Éireann in the National University constituency. He stood as a non-party candidate, and pledged to give his senator's salary to cancer research. In his regular column in the Sunday Independent, Crown expressed hope that James Reilly, health minister in the new government elected in February 2011 would reform the health services. Offering the electorate what he called "fresh thinking, new abilities, and a different perspective" he was elected on the 24th and final count for the National University constituency.

Seanad bills As a member of the 24th Seanad, Crown brought three bills before the house. The first was The Reporting of Lobbying in Criminal Legal Cases Bill 2011. It was rejected by the government. A second was the Protection of Children's Health from Tobacco Smoke Bill 2012. It was accepted by the government A third was the Seanad Electoral Reform Bill 2013. It was rejected by the government. In 2013, Crown stated that Opus Dei prelature was mobilising within the Irish professions to influence efforts at Irish abortion law legalisation.

References

External links Kathy Sheridan runs the rule over maverick medic John Crown, The Irish Times, 29 March 2016

Illustrations

John Crown illustration

Worked examples

Example 1 — a first encounter with John Crown

Start with the simplest possible case. Write down what John Crown 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 John Crown 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 Crown 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 Crown

In research
John Crown 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 John Crown 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 Crown is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1957 births, Alumni of University College Dublin, Cancer researchers, so understanding it makes those chapters shorter.
In everyday life
Look for John Crown 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 Crown in 20 minutes

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

Frequently asked questions

What is John Crown in simple terms?

John Paul Crown (born 1 March 1957) is an Irish consultant oncologist and former politician who served as a Senator for the National University constituency from 2011 to 2016. Background and education Born in Brooklyn, New York to Irish emigrant parents, Crown's family returned to Ireland in 1967…

Why does John Crown 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 John Crown?

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 Crown.

Tags

  • 1957 births
  • Alumni of University College Dublin
  • Cancer researchers
  • Independent members of Seanad Éireann
  • Living people
  • Medical doctors from Brooklyn
  • Medical doctors from Dublin (city)
  • Members of Seanad Éireann for the National University of Ireland
  • Members of the 24th Seanad
  • Members of the Royal Irish Academy
  • People educated at Synge Street CBS
  • People educated at Terenure College

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