physics

Takeshi Oka

Takeshi Oka is a physics 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 Takeshi Oka rather than just read about it. In short: Takeshi Oka (岡武史, Oka Takeshi; born 1932), , is a Japanese-American spectroscopist and astronomer specializing in the field of galactic astronomy, known as a pioneer of astrochemistry and the co-discoverer of interstellar trihydrogen cation (H+3). He is now R.A.

Key takeaways

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

Reference excerpt

Takeshi Oka (岡武史, Oka Takeshi; born 1932), , is a Japanese-American spectroscopist and astronomer specializing in the field of galactic astronomy, known as a pioneer of astrochemistry and the co-discoverer of interstellar trihydrogen cation (H+3). He is now R.A. Milliken Distinguished Service Emeritus Professor, Departments of Astronomy and Astrophysics, Chemistry; Enrico Fermi Institute; and the College of University of Chicago.

Education Oka received his BS and PhD degrees in 1955 and 1960, respectively, at the University of Tokyo.

Career From 1960 to 1963, Oka was a JSPS Fellow at the University of Tokyo, and in 1963, he was a postdoctoral fellow along with Harry Kroto and J.K.G.Watson, among others, in Gerhard Herzberg's spectroscopy laboratory at the National Research Council of Canada. Afterward, he successively worked at the National Research Council of Canada (1964–1981), and at the University of Chicago (1981–). His research group is concerned with the study of the quantum mechanics and dynamics of fundamental molecular ions and their behavior in astronomical objects. In 1980, at the National Research Council of Canada, Oka discovered the infrared spectrum of H+3. which is thought to be the starting point for gas phase chemistry in interstellar "molecular clouds." Following a lengthy search Thomas R. Geballe and Oka detected the infrared spectrum of H+3 in two interstellar clouds. Since then Oka and his colleagues have published numerous papers on their observations of interstellar H+3.

Recognition Source: Oka was on the list of ChemBank's prediction for the 2015 Nobel Prize in Chemistry.

Awards 2004 - Davy Medal. 2004 - Norman MacLean Faculty Award. 2002 - E. Bright Wilson Award in Spectroscopy 1998 - Ellis R. Lippincott Award. 1997 - William F. Meggers Award. 1990 - Burlington Northern Achievement Award. 1982 - Earle K. Plyler Prize for Molecular Spectroscopy 1973 - Steacie Prize.

Titles 2004 - Wei Lun Visiting Professorship. 2004 - Honorary DSc from the University College London. 2003 - Earl W. McDaniel Lecture Georgia Institute of Technology. 2001 - Honoris caua, University of Waterloo. 2000 - George Pimentel Memorial Lecture, University of California, Berkeley. 1998 - Medaili Jana Marca Marci. 1997 - Distinguished JILA Visitor. 1995 - Golden Jubilee Lecture, Tata Institute of Fundamental Research. 1992 - Special Issue, Journal of Molecular Spectroscopy, Vol. 153. 1992 - Lecturer, International School of Physics, "Enrico Fermi". 1992 - Lord Lecturer, Massachusetts Institute of Technology. 1989 - McDowell Lecturer, University of British Columbia. 1985-1986 - Chancellor's Distinguished Lecturer, University of California, Berkeley. 1981-1982 - Centenary Lecturer, Royal Society.

Membership in learned societies Fellow, American Academy of Arts and Sciences Fellow, American Physical Society Fellow, Optical Society of America Fellow, Royal Society of London Fellow, Royal Society of Canada

Publications Source:

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Takeshi Oka

Start with the simplest possible case. Write down what Takeshi Oka claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 Takeshi Oka 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 Takeshi Oka 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 Takeshi Oka

In research: Takeshi Oka appears in physics 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 Takeshi Oka 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: Takeshi Oka is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1932 births, 21st-century American chemists, American academics of Japanese descent, so understanding it makes those chapters shorter.
In everyday life: Look for Takeshi Oka 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 Takeshi Oka in 20 minutes

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

Frequently asked questions

What is Takeshi Oka in simple terms?

Why does Takeshi Oka matter?

Because it connects several physics 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 Takeshi Oka?

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 Takeshi Oka.