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Gregory Jaczko

Gregory Jaczko 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 Gregory Jaczko rather than just read about it. In short: Gregory B. Jaczko (; born October 29, 1970, Norristown, Pennsylvania) is a physicist who is the 13th and former chairman of the U.S.

Gregory Jaczko — main illustration
Gregory Jaczko — illustration

Key takeaways

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

Reference excerpt

Gregory B. Jaczko (; born October 29, 1970, Norristown, Pennsylvania) is a physicist who is the 13th and former chairman of the U.S. Nuclear Regulatory Commission (NRC) from 2009 to 2012. While at the NRC, he voted against the opening of new nuclear plants; an inspector general report found that he sought unilaterally and improperly to block the Yucca Mountain nuclear waste repository project from advancing. After leaving the NRC, Jaczko called for a global ban on nuclear power.

Early life and education Jaczko was raised in Albany, New York, the son of Kathryn Marie and Bela L. Jaczko. He studied physics and philosophy at Cornell University in Ithaca, New York; he earned a bachelor in the two disciplines there in 1993. In 1999, he earned a doctorate in theoretical particle physics from the University of Wisconsin–Madison. He is married to journalist Leigh Ann Caldwell.

Political career Jaczko served as a Congressional Science Fellow in the office of U.S. Representative Ed Markey in Washington, D.C., on the basis of an AAAS Science and Technology Policy Fellowship. He also worked as an adjunct professor for Physics and Public Policy under Dr. Francis Slakey at Georgetown University in Washington, D.C. He later advised the United States Senate Committee on Environment and Public Works on issues regarding nuclear power. He served as appropriations director for U.S. Senator Harry Reid and as Reid's science policy advisor.

Nuclear Regulatory Commission Jaczko was first sworn in as a Commissioner of the Nuclear Regulatory Commission (NRC) on January 21, 2005. On May 13, 2009, President Obama designated him the organization's chairman, its principal executive officer and official spokesperson. The chairman is responsible for long-range planning as well as budgetary and certain personnel functions of the NRC. “He also has authority for all NRC functions pertaining to a potential emergency involving an NRC licensee”.

Policy positions Jaczko has asserted that the greatest possible openness furthers the Nuclear Regulatory Commission's work on the protection of the environment and of public health and safety. He encourages “licensees, vendors, state and local governments, interest groups, and the general public” to participate in the commission's policy-making efforts. Efforts by Jaczko to strengthen security regulations for nuclear power plants have included requiring new such plants to be able to withstand an aircraft crash. On February 9, 2012, Jaczko cast the lone dissenting vote on plans to build the first new nuclear power plant in more than 30 years when the NRC voted 4–1 to allow Atlanta-based Southern Co to build and operate two new nuclear power reactors at its existing Vogtle nuclear power plant in Georgia. He cited safety concerns stemming from Japan's 2011 Fukushima nuclear disaster, saying "I cannot support issuing this license as if Fukushima never happened".

Management style and resignation A report by Nuclear Regulatory Commission Inspector General Hubert T. Bell found that Jaczko "strategically" withheld information from his colleagues in an effort to keep plans for the Yucca Mountain nuclear waste repository from advancing. In October 2011, all the other four NRC commissioners—two Democrats and two Republicans—sent a letter to the White House expressing "grave concern" about Jaczko's actions at the NRC. On December 14, 2011, Commissioner William Ostendorff, a Republican, told a House oversight committee that Jaczko's "bullying and intimidation... should not and cannot be tolerated." At a House Government Reform and Oversight Committee hearing on December 14, 2011, NRC Commissioner William Magwood, a fellow Democrat, testified about what he called Jaczko's abusive behavior towards employees, especially female subordinates. “One woman told me that she felt the chairman was actually irritated with someone else, but took it out on her,” Magwood said. “Another said she was angry at herself for being brought to tears in front of male colleagues. A third described how she couldn’t stop shaking after her experience. She sat, talking with her supervisor until she could calm down sufficiently to drive home.” A report by the Government Reform and Oversight Committee detailed incidents indicating what was cited as Jaczko's "propensity for angry outbursts and aggressive behavior." A 2012 NRC Office of Inspector General report identified multiple examples where his behavior was not supportive of an open and collaborative work environment. Top House Republicans called on President Obama to dismiss Jaczko. Jaczko said problems at the agency were not his fault but instead stem from "lack of understanding" on the part of others. Senate Majority Leader Harry Reid defended Jaczko, saying his critics are attacking him because "they’re concerned about the nuclear industry. He’s concerned about the American people." Peter A. Bradford, who was a commission member from 1977 to 1982, has also defended Jaczko. Bradford said it was not unusual for the commissioners to disagree strongly, and added that he did not believe that "the chairman is somehow raging around the agency and intimidating the staff". He also argued that, although the letter about Jaczko was written by two Republicans and two Democrats, it was necessarily bi-partisan in the context of nuclear politics. He claimed that "In Washington, you’ve got a situation where the ‘nuclear party’ transcends the Republican and Democratic party," adding that "You’ve got four members of the nuclear party writing a letter about the chairman, who’s never been a member of the nuclear party." On May 21, 2012, he announced his resignation pending the confirmation of the next person to fill this role. On July 9, 2012, Jaczko was replaced by Allison Macfarlane, a nuclear waste expert and associate professor at George Mason University. In 2013 he was appointed by Harry Reid to a post on a Congressional panel overseeing the National Nuclear Security Administration

… excerpt ends here. Continue reading the full article.

Illustrations

Gregory Jaczko illustration
Gregory Jaczko: Senator Harry Reid swearing in Jaczko
Senator Harry Reid swearing in Jaczko

Worked examples

Example 1 — a first encounter with Gregory Jaczko

Start with the simplest possible case. Write down what Gregory Jaczko 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 Gregory Jaczko 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 Gregory Jaczko 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 Gregory Jaczko

In research
Gregory Jaczko 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 Gregory Jaczko 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
Gregory Jaczko is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1970 births, 21st-century American physicists, Chairs of the Nuclear Regulatory Commission, so understanding it makes those chapters shorter.
In everyday life
Look for Gregory Jaczko 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 Gregory Jaczko in 20 minutes

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

Frequently asked questions

What is Gregory Jaczko in simple terms?

Gregory B. Jaczko (; born October 29, 1970, Norristown, Pennsylvania) is a physicist who is the 13th and former chairman of the U.S.

Why does Gregory Jaczko 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 Gregory Jaczko?

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 Gregory Jaczko.

Tags

  • 1970 births
  • 21st-century American physicists
  • Chairs of the Nuclear Regulatory Commission
  • Cornell University alumni
  • Living people
  • Obama administration personnel
  • People associated with nuclear power
  • Politicians from Albany, New York
  • Scientists from New York (state)

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