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John Backus (acoustician)

John Backus (acoustician) 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 John Backus (acoustician) rather than just read about it. In short: John Graham Backus (April 29, 1911 – October 28, 1988) was a Lithuanian American physicist and acoustician. John Backus was born and raised in Portland, Oregon, where he studied at Reed College, receiving a BA in 1932.

John Backus (acoustician) — main illustration
John Backus (acoustician) — illustration

Key takeaways

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

Reference excerpt

John Graham Backus (April 29, 1911 – October 28, 1988) was a Lithuanian American physicist and acoustician. John Backus was born and raised in Portland, Oregon, where he studied at Reed College, receiving a BA in 1932. He went on to graduate studies at the University of California, Berkeley, where he did research in nuclear physics at the Radiation Laboratory under Ernest Lawrence. He received an MA in 1936, and a PhD in 1940. In 1945 he was appointed professor of physics at the University of Southern California, a post he retained until his retirement in 1980. During the early part of his career, his research focussed on gaseous discharges in strong magnetic fields. He was also a musician, trained as a performer on piano, bassoon, clarinet and other woodwinds and received the degree of MMus in conducting from the University of Southern California in 1959. In his later career he turned increasingly to the study of musical acoustics, particularly those of wind instruments and organ pipes. In 1969 he published The Acoustical Foundations of Music, a book which became a standard text for introductory courses in musical acoustics. A second edition appeared in 1977. He received the Silver Medal of the Acoustical Society of America in 1986. Backus died in Los Angeles in 1988. In addition to music and physics, Backus was also a highly skilled mountaineer. The Sierra Club's Hundred Peaks Section List contains approximately 275 summits, and Backus was the first person to ascend every mountain on the list six times. He was also the first person to lead every peak on the list, among his many hiking and climbing accomplishments.

Works Backus, John (1969). The Acoustical Foundations of Music. New York: Norton. ISBN 0-393-09834-6. LCCN 68-54957.

References

Sources Campbell, Murray. 2001. "Backus, John (Graham)". The New Grove Dictionary of Music and Musicians, edited by Stanley Sadie and John Tyrrell. London: Macmillan.

External links The John Backus Archive at CCRMA, Stanford University.

Illustrations

John Backus (acoustician): Backus in 1939 at the control panel for the Berkeley Lab 60-inch cyclotron
Backus in 1939 at the control panel for the Berkeley Lab 60-inch cyclotron

Worked examples

Example 1 — a first encounter with John Backus (acoustician)

Start with the simplest possible case. Write down what John Backus (acoustician) 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 John Backus (acoustician) 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 Backus (acoustician) 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 Backus (acoustician)

In research
John Backus (acoustician) 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 John Backus (acoustician) 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 Backus (acoustician) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1911 births, 1988 deaths, 20th-century American physicists, so understanding it makes those chapters shorter.
In everyday life
Look for John Backus (acoustician) 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 Backus (acoustician) in 20 minutes

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

Frequently asked questions

What is John Backus (acoustician) in simple terms?

John Graham Backus (April 29, 1911 – October 28, 1988) was a Lithuanian American physicist and acoustician. John Backus was born and raised in Portland, Oregon, where he studied at Reed College, receiving a BA in 1932.

Why does John Backus (acoustician) 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 John Backus (acoustician)?

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 Backus (acoustician).

Tags

  • 1911 births
  • 1988 deaths
  • 20th-century American physicists
  • Acousticians
  • American nuclear physicists
  • American physicist stubs
  • Reed College alumni
  • Scientists from Portland, Oregon
  • UC Berkeley College of Letters and Science alumni
  • University of Southern California faculty

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