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Jan C. A. Boeyens

Jan C. A. Boeyens 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 Jan C. A. Boeyens rather than just read about it. In short: Jan C. A.

Key takeaways

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

Reference excerpt

Jan C. A. Boeyens (October 2, 1934 – August 26, 2015) was a South African chemist and educator. Boeyens was educated at the University of Pretoria. He worked at the Council for Scientific and Industrial Research of South Africa and at Stanford University. He became a professor of chemistry at the University of the Witwatersrand and Extraordinary Professor at UNISA. He has written or co-written more than 600 scientific contributions. Some of his books are used as textbooks of theoretical chemistry all over the world. As an emeritus he wrote books challenging the current scientific consensus about the adequacy of quantum mechanics in which he presented a way to establish more accurate modern physics and chemistry without using higher mathematics by using elementary number theory.

Biography

Education and career in chemistry Jan Boeyens was born 2 October 1934 in Wesselsbron, Free State, South Africa. He attended the University of the Orange Free State and in 1955 he obtained a BSc (Chemistry, Physics, Mathematics), in 1956 a BSc(Hons) (Chemistry) and in 1957 MSc (Cum Laude) (Chemistry). He was appointed lecturer in chemistry at the University of the Orange Free State from 1958 to 1960. He was lecturer in Physical Chemistry at the University of South Africa (UNISA) and worked at the National Physical Laboratory of the Council for Scientific and Industrial Research (CSIR) where he was Chief Research officer and Head of Crystallography division: Physical Chemistry Group from 1961 to 1963. He attended the University of Pretoria from 1963 to 1964 and obtained a DSc (with Honours) (Physical and Theoretical Chemistry). His postdoctoral studies were at Stanford University from 1965 to 1966 where he was a Research Associate: Physical Chemistry. He worked at the National Institute for Metallurgy, MINTEK as Chief Scientist and Director of Mintek Research Group for Applied Structural Chemistry, Rand Afrikaans University from 1971 to 1973. He was appointed Honorary Lecturer at Rand Afrikaans University from 1973 to 1975. In 1976 he was a Visiting Researcher at the University of Sussex, England. He returned to the National Physical Laboratory of the CSIR in 1976 where he worked as Head: Physical Chemistry (Structural Chemistry and X-ray Crystallography) until 1980. He was appointed Professor of Theoretical Physics at the University of the Witwatersrand (WITS) from 1981 to 1999. He was also a visiting professor at Texas A&M University in 1984. Boeyens was appointed Head: Department of Chemistry at WITS from 1984 to 1990 and again from 1997 to 1999. From 1986 to 1999 he was the Director: Centre for Molecular Design at WITS and from 1991 to 1993 became the Dean: Faculty of Science. He was visiting professor at the Free University of Berlin in 1994, and at the University of Heidelberg, Germany in 1998, 2005, 2006, 2007 and 2010. He lectured as professor of chemistry and was Head, Department of Chemistry at the University of Pretoria from 2000 to 2004. In 2005 he was appointed Extraordinary Professor at the Centre for Advancement of Scholarship, University of Pretoria.

Family life Boeyens married Martha Hunter in 1960. They had three children, Jan, Aletta and Larisa. He died on 28 August 2015 in Broederstroom, North West, South Africa after returning home from a crystallography conference.

Societies and awards Boeyens belonged to the followings societies:

Royal Society of SA (Fellow) SA Chemical Institute (Life member) SA Crystallographic (Society Member) American Chemical Society (Former member) Journal of Chemical Crystallography (Editorial board until 2012) International Union of Crystallography (IUCr) (National Committee Chairman 1990 to 1994) NY Academy of Sciences (Former member) SA Academy of Science (Founder member – resigned) International Union of Crystallography Executive (1996 to 2002) University Council, WITS (1997 to 1999) He received the following awards:

AECI Medal 1973, 1981 SACI Gold Medal 1983 Ernst Oppenheimer Fellowship 1984 SA Akademie Havenga Prize 1986 Alumnus of the Year, Univ. of Free State 1987 Claude Harris Leon Award 1992 Alexander von Humboldt Research Prize 1993 Distinguished Research Award, WITS 1995 Naming: Jan Boeyens Laboratory, WITS 2000 Merck Medal 2004 Centennial Leading Mind, Univ. of Pretoria 2008 The first Jan Boeyens Medal for outstanding young scientists (younger than 40 years) in theoretical Chemistry or Physics was awarded to Prof Gideon Steyl from the University of the Free State Chemistry department in 2009.

Publications Boeyens authored 7 books and more than 270 other publications. His books are listed below.

Boeyens, Jan C. A. (2003), The Theories of Chemistry, Elsevier, ISBN 978-0-444-51491-2. Boeyens, Jan C. A. (2005), New Theories for Chemistry, Elsevier, ISBN 978-0-444-51867-5. Boeyens, Jan C. A.; Levendis, Demetrius C. (2008), Number Theory and the Periodicity of Matter, Berlin: Springer-Verlag, Bibcode:2008ntpm.book.....B, ISBN 978-1-4020-6659-7. Boeyens, Jan C. A. (2008), Chemistry from First Principles, Berlin: Springer-Verlag, ISBN 978-1-4020-8545-1. Boeyens, Jan C. A. (2010), Chemical Cosmology, Dordrecht: Springer-Verlag, ISBN 978-90-481-3827-2. Boeyens, Jan C. A.; Comba, Peter (2013), Electronic Structure and Number Theory: Bohr's Boldest Dreams, Springer-Verlag, ISBN 978-3-642-31976-1. Boeyens, Jan C. A. (2013), The chemistry of matter waves, Dordrecht: Springer-Verlag, ISBN 978-94-007-7577-0

Quotes In some of his books and articles Boeyens held some dissident views on several subjects:

Numerologists can interpret great historical and cosmic events, predict the future and explain human nature. Volumes have been written about the red herring known as Schrödinger’s cat. Without science writers looking for sensation, it is difficult to see how such nonsense could ever become a topic for serious scientific discussion. He was also a strong believer in practical work to obtain tangible results over theoretical calculations:

All advances in chemistry happen at the bench, as it should, but without the theoretical understanding, even of common events such as intramolecular rearrangement. No calculation can predict chemical reactions. His book Number Theory and the Periodicity of Matter (co-authored with Demetrius C. Levendis) references the work of Peter Plichta. In it they try to replace modern quantum physics with elementary number theory, but unlike Plichta they do not question the general theory of relativity:

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Jan C. A. Boeyens

Start with the simplest possible case. Write down what Jan C. A. Boeyens 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 Jan C. A. Boeyens 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 Jan C. A. Boeyens 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 Jan C. A. Boeyens

In research
Jan C. A. Boeyens 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 Jan C. A. Boeyens 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
Jan C. A. Boeyens is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1934 births, 2015 deaths, Academic staff of Rand Afrikaans University, so understanding it makes those chapters shorter.
In everyday life
Look for Jan C. A. Boeyens 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 Jan C. A. Boeyens in 20 minutes

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

Frequently asked questions

What is Jan C. A. Boeyens in simple terms?

Jan C. A.

Why does Jan C. A. Boeyens 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 Jan C. A. Boeyens?

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 Jan C. A. Boeyens.

Tags

  • 1934 births
  • 2015 deaths
  • Academic staff of Rand Afrikaans University
  • Academic staff of the University of the Witwatersrand
  • Fellows of the Royal Society of South Africa
  • South African chemists
  • Theoretical chemists
  • University of Pretoria alumni

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