Sentences with phrase «nuclear physicists say»

Nuclear physicists say such a weapon could cause a local tsunami, though they question its purpose and effectiveness, given the far more terrible destruction that nukes can inflict when detonated aboveground.

Not exact matches

Greg Spriggs, a nuclear - weapons physicist at Lawrence Livermore National Laboratory, said a 50 - megaton weapon «could possibly induce a tsunami» and hit a shoreline with the energy equivalent to a 650 - kiloton blast.

If flown on a standard trajectory, instead of Wednesday's lofted angle, the missile would have a range of more than 13,000 kilometers (8,100 miles), said U.S. scientist David Wright, a physicist who closely tracks North Korea's missile and nuclear programs.

I recently spoke with an M.I.T. nuclear physicist, Andrew Kadak, who said the engineering challenges were so great and the costs so high that it would be more practical to pursue conventional power sources.

He has introduced himself as a nuclear physicist before and some say he shouldn't really claim that.

«I think that this is primarily a way to bridge over the Ayatollah's requirement that no Iranian nuclear facility be shut down and the US requirement that enrichment of uranium stop there,» says Frank von Hippel, a nuclear - weapons and non-proliferation physicist at Princeton University in New Jersey.

Physicists had to design computer simulations, tested against those mid-century analyses, to «predict what would happen if a weapon went off,» says Greg Spriggs, a nuclear weapon physicist at Lawrence Livermore National Laboratory, who is leading the project to scan and declassify the films.

«This research illustrates a deep connection between two seemingly unrelated fields, and required contributions from an interdisciplinary team of condensed matter and nuclear physicists,» said James Misewich, the Associate Laboratory Director for Energy Science at Brookhaven Lab and a professor of physics at Stony Brook University, who played the central role of introducing the members of this research team to one another.

Aside from waffling a bit on questions about the wisdom of nuclear - weapons testing and whether climate change represents a global crisis, Perry generally said the right things, says Michael Lubell, a physicist at the City College of New York.

Subsequent testing has shown that not to be the case, at least in the opinion of many physicists — many highly respected physicists — and so the supporters of the RRW have moved onto other rationales for why we would need these including margin, which is your, I guess, confidence, that a nuclear weapon will explode as it is intended to; it will deliver exactly, say ten kilotons of destructive force or one megaton or whatever the desired explosive force is.

Many of the folks who are involved in building the last round of nuclear weapons or even the first round of nuclear weapons are either passing away or retiring or otherwise their knowledge is becoming inaccessible; and of course there are records, but there is, as many physicists who I interviewed said, «There is nothing like learning by doing and if we want to maintain the ability to build nuclear weapons for the indefinite future, then some argue that we need to continue to build them to train up this next generation of potential nuclear weapon scientists.»

Joseph Hamilton, a nuclear physicist at Vanderbilt University in Nashville, says that Oganessian asked for his help in getting a berkelium target from ORNL.

«The NRC has been pressured by the nuclear industry, directly and through Congress, to low - ball the potential consequences of a fire because of concerns that increased costs could result in shutting down more nuclear power plants,» said paper co-author Frank von Hippel, a senior research physicist at Princeton's Program on Science and Global Security (SGS), based at the Woodrow Wilson School of Public and International Affairs.

In the first two experiments, Boehme says, the physicists made nuclear spins in a proton and deuterium wiggle in characteristic ways, and were able to read corresponding wiggles in the resulting electrical current.

«We have made, by far, the most precise extraction to date of a key property of the quark - gluon plasma, which reveals the microscopic structure of this almost perfect liquid,» says Xin - Nian Wang, physicist in the Nuclear Science Division at Berkeley Lab and managing principal investigator of the JET Collaboration.

Four or five decades from now, physicists say, nuclear fusion may provide nearly limitless cheap, clean electricity.

But it is still not compatible with the measurements taken by non-muonic techniques, says John Arrington, a nuclear physicist at Argonne National Laboratory in Lemont, Illinois.

«If the United States, the strongest nation in the world, concludes that it can not protect its vital interests without relying on new nuclear weapons for new military missions, it would be a clear signal to other nations that nuclear weapons are valuable, if not necessary, for their security purposes, too,» Sidney Drell, arms control expert and physicist at the Stanford Linear Accelerator Center said at the American Physical Society Conference in Denver this past March.

Together, the data make it 99.7 percent likely that the discrepancy is real, not due to chance, says physicist Luca Silvestrini of the National Institute for Nuclear Physics in Rome, who took part in the study submitted to Physical Review Letters.

People have been investigating the effects of nuclear weapons for decades, but Remo offered a novel twist, says R. Jeffery Lawrence, a physicist who recently retired from Sandia: «He initiated studies of how X-rays interact with the stuff that asteroids are made of.»

«We may be able to fit humans into our simulation boxes within a century,» says Silas Beane, a nuclear physicist at the University of Washington in Seattle.

«It's almost science fiction to be driving around antimatter in a truck,» says Charles Horowitz, a theoretical nuclear physicist at Indiana University, Bloomington.

«One of the reasons understanding neutron skins and halos is so important is to make the most of astrophysical observations,» says Panagiota Papakonstantinou, a nuclear physicist at the Institute for Basic Science in Daejeon, South Korea.

At a United Nations atomic energy conference held in Geneva in 1955, an Indian nuclear physicist named Homi Bhabha said, «I venture to predict that a method will be found for liberating fusion energy in a controlled manner within the next two decades.

But despite its everday appearance, the proton remains something of a mystery to nuclear physicists, says Randolf Pohl, a researcher at the Max Planck Institute of Quantum Optics in Garching, Germany, and an author on the Nature paper.

Much of what people do here is really very dirty work like getting down on your knees, pulling cables,... working long hours, just sitting around waiting for the beam to come back on,» says Michael Doser, a physicist at the European Organization for Nuclear Research near Geneva, Switzerland, who helps run a Summer Student Programme there.

Iranian and U.S. nuclear scientists have much to learn from each other, says Robert Rosner, a theoretical physicist at the University of Chicago in Illinois and former director of Argonne National Laboratory.

A major spent fuel fire at a U.S. nuclear plant «could dwarf the horrific consequences of the Fukushima accident,» says Edwin Lyman, a physicist at the Union of Concerned Scientists, a nonprofit in Washington, D.C., who was not on the panel.

You quote physicist Thomas Klinger saying that lack of progress on nuclear fusion for power generation is simply down to a lack of funding (13 May, p 38).

«The safe disposal of nuclear waste is a colossal problem,» said Renaud Gueroult, staff physicist at PPPL and lead author of the paper that appeared in the Journal of Hazardous Materials in October.

«The plume is very large,» says Ted Bowyer, a nuclear physicist at the Pacific Northwest National Laboratory in Richland, Wash., one of the first U.S. stations to detect isotopes released from Fukushima.

Europe's last remaining high - energy machine for studying nuclear structure, a powerful new particle accelerator being built near Strasbourg, is «fundamentally flawed», say physicists in Britain and the US.

Despite the problems, nuclear and particle physicists continue to express broad support for the neutron EDM studies, which they say are a unique complement to the LHC work.

Marvin Adams, a nuclear physicist at Texas A&M who has been a consultant to Los Alamos's work with warhead pits, said that «If they continue on their path to get everything back up and running, I am pretty comfortable.»

But Richard Garwin, a retired IBM physicist and Presidential Medal of Freedom recipient who has long been a technical adviser on nuclear weapons and stockpile surveillance to the Defense Department and the NNSA, said the government had not been transparent enough about the long lapse in testing and production.

«So, the question was whether lithium will have the same effect on tungsten walls as it does with carbon walls,» said PPPL physicist Rajesh Maingi, lead author with Jiansheng Hu of the Institute of Plasma Physics at the Chinese Academy of Sciences (ASIPP) of a paper describing the results in the journal Nuclear Fusion.

They attributed the radio silence to the culture gap separating nuclear and particle physics: «Nuclear physicists didn't know what to make of it» since claims of new particles are not really their thing, Feng said, «and particle physicists, who are of course extremely interested in any sign of a new particle, simply don't read the [experimental nuclear physics] arxiv listings.nuclear and particle physics: «Nuclear physicists didn't know what to make of it» since claims of new particles are not really their thing, Feng said, «and particle physicists, who are of course extremely interested in any sign of a new particle, simply don't read the [experimental nuclear physics] arxiv listings.Nuclear physicists didn't know what to make of it» since claims of new particles are not really their thing, Feng said, «and particle physicists, who are of course extremely interested in any sign of a new particle, simply don't read the [experimental nuclear physics] arxiv listings.nuclear physics] arxiv listings.»

The world's nuclear enrichment programs should be under international control to prevent the development of nuclear weapons after the new arms deal with Iran expires in 10 to 15 years, said Frank von Hippel, a senior Princeton University research physicist and a former security advisor during the Clinton Administration.

The Bond girl: Sophie Marceau's bad girl brings the right mix of exotic beauty and predatory danger; the less said about Denise Richards's nuclear physicist -LRB-?!?), the better.

«A nuclear physicist doesn't read her research the same way she reads a biography of Harry Truman,» says Mason.

«Nobody knows the likelihood of a serious nuclear accident,» said James MacKenzie, a physicist who is a senior staff scientist for the Union of Concerned Scientists, a scientific public - interest organization.

I try to imagine what the reaction would be if physicists in another (non-climate) area — say, quantum computing — were to hold a conference, and physicists from yet another area — let's say, high - energy nuclear physics — were to show up at their conferences and tell them, without having read up carefully on quantum computing, and lacking the knowledge to make substantive criticisms of the mainstream views in that field (beyond, perhaps, superficial ones that had already been exhaustively addressed and refuted in the quantum computing literature), that they had it all wrong.