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Leland John Haworth

Leland John Haworth 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 Leland John Haworth rather than just read about it. In short: Leland John Haworth (July 11, 1904 – March 5, 1979) was an American particle physicist. In his long career he was head of the Brookhaven National Laboratory, the Atomic Energy Commission, the National Science Foundation, and was assistant to the president of Associated Universities, Inc.

Leland John Haworth — main illustration
Leland John Haworth — illustration

Key takeaways

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

Reference excerpt

Leland John Haworth (July 11, 1904 – March 5, 1979) was an American particle physicist. In his long career he was head of the Brookhaven National Laboratory, the Atomic Energy Commission, the National Science Foundation, and was assistant to the president of Associated Universities, Inc.

Early life Leland John Haworth was born on July 11, 1904, in Flint, Michigan, although his parents were normally living in New York City at the time. Both of his parents, Martha (née Ackerman) and Paul Leland Haworth, were both teachers, and were Quakers. The family moved to Cleveland, Ohio, in 1907 for a brief time, then to Newton County, Indiana, in 1910. Haworth graduated from the Indiana University Bloomington with a Bachelor of Arts in 1925 and a Master of Arts in 1926. He also played college baseball for Indiana, and even played in the semi-pros. After obtaining a scholarship, Haworth attended the University of Wisconsin–Madison and earned his Doctor of Philosophy in 1931. His thesis was titled "Secondary Electrons from Very Clean Metal Surfaces when Bombarded with Primary Electrons and his advisor was Charles Elwood Mendenhall.

Personal life In 1927 he married Barbara Mottier, the daughter of the chairman of the Botany Department at Indiana University, and they had two children: Jane and John. In 1959, Haworth learned that he had colon cancer, and then in February 1961, his wife died. In May 1963, Haworth married Irene Benik, a secretary at the President's Science Advisory Committee.

Career He taught at the Arsenal Technical High School in Indianapolis for two years while working on his father's farm before pursuing his PhD. He worked as an instructor at the University of Wisconsin–Madison for six years, and began working on particle accelerators there in 1934. He then spent a year working at the Massachusetts Institute of Technology in 1937. After his father died, he then took a new position as faculty at the University of Illinois Urbana-Champaign.

Massachusetts Institute of Technology With the onset of World War II, Haworth assisted with wartime research at the MIT Radiation Laboratory, developing new radar systems. He was a member of the steering committee and helped to manage the laboratory. He also wrote large sections of the Radiation Laboratory Series, a highly regarded technical work. He joined the newly created Brookhaven National Laboratory in Upton, New York, in 1948, immediately taking a leadership role as assistant director for special projects. He became the full director the next year, and held that position until 1961. While there, he helped with the construction of many experimental apparatus, including the Cosmotron. The laboratory soon gained worldwide recognition as a premier research facility. He was also president and director of the American Nuclear Society.

Atomic Energy Commission

A few months after his first wife died in 1961, Haworth along with Glenn T. Seaborg, was assigned by President John F. Kennedy to become commissioner of the Atomic Energy Commission. He accepted the position and worked long hours, soon heading the research of the AEC. He supported a ban on atmospheric nuclear testing, helping to develop the Limited Test Ban Treaty in 1963. He also traveled to Alaska to assist with Operation Chariot, a plan to use nuclear bombs in the construction of a harbor as part of Operation Plowshare, and met with various Inuit groups. The project was never carried out. Haworth wrote Civilian Nuclear Power–A Report to the President–1962, an influential public policy paper.

National Science Foundation In 1963, President Kennedy asked Haworth to direct the National Science Foundation. He tackled issues there such as Project Mohole, bringing new colleges into NSF research, and planning for the Very Large Array. He also assisted Congressman Emilio Q. Daddario draft an important NSF reorganization bill. Haworth was elected to the American Academy of Arts and Sciences, the American Philosophical Society, and the National Academy of Sciences in 1965. In 1969, Haworth's term as NSF director ended, and he moved to Long Island, New York. He became a part-time assistant to the president of Associated Universities, Inc., a position he held until 1975, and was special consultant to the director of Brookhaven.

Death Haworth died on March 5, 1979, at St. Charles Hospital in Port Jefferson, New York. He is buried in West Newton Cemetery, West Newton, Indiana.

References

External links

Illustrations

Leland John Haworth illustration
Leland John Haworth: Commissioner Haworth at press conference in 1961, photograph by Ed Westcott
Commissioner Haworth at press conference in 1961, photograph by Ed Westcott

Worked examples

Example 1 — a first encounter with Leland John Haworth

Start with the simplest possible case. Write down what Leland John Haworth 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 Leland John Haworth 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 Leland John Haworth 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 Leland John Haworth

In research
Leland John Haworth 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 Leland John Haworth 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
Leland John Haworth is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1904 births, 1979 deaths, 20th-century American physicists, so understanding it makes those chapters shorter.
In everyday life
Look for Leland John Haworth 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 Leland John Haworth in 20 minutes

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

Frequently asked questions

What is Leland John Haworth in simple terms?

Leland John Haworth (July 11, 1904 – March 5, 1979) was an American particle physicist. In his long career he was head of the Brookhaven National Laboratory, the Atomic Energy Commission, the National Science Foundation, and was assistant to the president of Associated Universities, Inc.

Why does Leland John Haworth 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 Leland John Haworth?

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 Leland John Haworth.

Tags

  • 1904 births
  • 1979 deaths
  • 20th-century American physicists
  • American nuclear physicists
  • Brookhaven National Laboratory staff
  • Directors of the National Science Foundation
  • Fellows of the American Academy of Arts and Sciences
  • Fellows of the American Association for the Advancement of Science
  • Fellows of the American Physical Society
  • Indiana University Bloomington alumni
  • Indiana University faculty
  • Kennedy administration personnel

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