Its power unit, however, was derived from the reactor of the more modern American nuclear submarine Skipjack.

Instead, the element is prepared, in milligram amounts, by the neutron irradiation of < sup > 226 </ sup > in a nuclear reactor.

A broad public discussion of environmental problems began in the mid-1980s, when the first " green " groups formed in opposition to Yerevan's intense industrial air pollution and to nuclear power generation in the wake of the 1986 reactor explosion at Chernobyl '.

For an example of its use, analysis of the concentration of elements is important in managing a nuclear reactor, so nuclear scientists will analyze neutron activation to develop discrete measurements within vast samples.

* 1986 – A nuclear reactor accident occurs at the Chernobyl Nuclear Power Plant in the Soviet Union ( now Ukraine ), creating the world's worst nuclear disaster.

In 1950 he also proposed an idea for a controlled nuclear fusion reactor, the tokamak, which is still the basis for the majority of work in the area.

The University of Missouri Research Reactor Center is the largest research reactor in the U. S. and produces radioisotopes used in nuclear medicine.

In nuclear physics, a single stray neutron can result in an prompt critical event, which may be finally be energetic enough for a nuclear reactor meltdown or ( in a bomb ) a nuclear explosion.

Demonstration of a self-sustaining nuclear chain reaction was accomplished by Enrico Fermi and others, in the successful operation of Chicago Pile-1, the first artificial nuclear reactor, in late 1942.

Enrico Fermi (; 29 September 1901 – 28 November 1954 ) was an Italian physicist, naturalized American later in his life, particularly known for his work on the development of the first nuclear reactor, Chicago Pile-1, and for his contributions to the development of quantum theory, nuclear and particle physics, and statistical mechanics.

The money was used in studies which led to the first nuclear reactor — Chicago Pile-1, a massive " atomic pile " of graphite bricks and uranium fuel which went critical on December 2, 1942.

* Three nuclear reactor installations have been named after Fermi:

In 1958 he led the design team for the TRIGA, a small, inherently safe nuclear reactor used throughout the world in hospitals and universities for the production of isotopes.

Godzilla, running low on radioactive energy after his fights with the Super X II and Biollante, heads towards the nearest operational nuclear reactor, which is located in Tsuruga, on the other side of the country.

The organization argues that the potential of nuclear power to mitigate global warming is marginal, referring to the IEA energy scenario where an increase in world's nuclear capacity from 2608 TWh in 2007 to 9857 TWh by 2050 would cut global greenhouse gas emissions less than 5 % and require 32 nuclear reactor units of 1000MW capacity built per year until 2050.

In Philadelphia, in 2006, Greenpeace issued a press release that said " In the twenty years since the Chernobyl tragedy, the world's worst nuclear accident, there have been nearly IN ALARMIST AND ARMAGEDDONIST FACTOID HERE ," The final report warned of plane crashes and reactor meltdowns.

After zirconium was chosen as material for nuclear reactor programs in the 1940s, a separation method had to be developed.

Existing americium is concentrated in the areas used for the atmospheric nuclear weapons tests conducted between 1945 and 1980, as well as at the sites of nuclear incidents, such as the Chernobyl disaster.

* Cyborg, a film featuring Jean-Claude Van Damme, tells the story of a post-apocalyptic Earth due to a nuclear disaster, and has a female cyborg as a central character.

Beginning in 1986, in response to the nuclear reactor explosion and disaster near Chernobyl, Ukraine, the IAEA redoubled its efforts in the field of nuclear safety.

In December 2011, nine months after the Fukushima nuclear disaster, the IAEA has yet to dedicate additional money to improve reactor safety.

The IAEA itself says that, beginning in 1986, in response to the nuclear reactor explosion and disaster near Chernobyl, Ukraine, the IAEA redoubled its efforts in the field of nuclear safety.

But Russian nuclear accident specialist Iouli Andreev is critical of the response to Fukushima, and says that the IAEA did not learn from the 1986 Chernobyl disaster.

Later in the decade, Cotten was in several all-star disaster films, including Airport ' 77 ( 1977 ) with James Stewart and again with Olivia de Havilland, and the nuclear thriller Twilight's Last Gleaming ( 1977 ).

However, nuclear reactors are still capable of causing smaller explosions even after complete shutdown, such as was the case of the Fukushima Daiichi nuclear disaster.

Nuclear power plant accidents include the Chernobyl disaster ( 1986 ), Fukushima Daiichi nuclear disaster ( 2011 ), the Three Mile Island accident ( 1979 ), and SL-1 accident ( 1961 ).

The center section is the nuclear disaster itself.

* September 29 – Kyshtym disaster occurs at a nuclear fuel reprocessing plant in Russia.

* November 27 – Cold War: Indian Prime Minister Jawaharlal Nehru appeals to the United States and the Soviet Union to end nuclear testing and to start nuclear disarmament, stating that such an action would " save humanity from the ultimate disaster.

Such is most of typical total dosage ( with mean annual exposure from other sources amounting to 0. 4 mSv from cosmic rays, 0. 007 mSv from the legacy of past atmospheric nuclear testing along with the Chernobyl disaster, 0. 0002 mSv from the nuclear fuel cycle, and, averaged over the whole populace, 0. 6 mSv medical tests and 0. 005 mSv occupational exposure ).

On April 26, 1986, the Chernobyl disaster occurred at the Chernobyl nuclear power plant in Ukraine situated close to the border with Belarus.

As the K-19 has been unable to inform anyone in the outside world of her predicament, the United States, the Soviet Union, or anyone else will only know that a huge nuclear explosion has destroyed a U. S. warship and NATO base ; that such a disaster could trigger World War III.

He also demanded that Kennedy take additional measures to increase international tension: specifically to crush the Cuban revolution, resume nuclear testing, resist more vigorously admission of China to its lawful seat in the United Nations, and postpone non-military programs at home ''.

As I see it, if war starts and we survive the initial attack enough to be able to fight back, the nuclear weapons we now have -- at least the bombs -- can inflict all the demage that is necessary.

On October 19, after the Soviets had detonated at least 20 nuclear devices, Ambassador Stevenson warned the UN General Assembly that this country, in `` self protection '', might have to resume above-ground tests.

at the peaks of the nuclear test and the Berlin cycles ; ;

Let's throw a little nuclear hardware at them and show them who's boss ''.

`` Throw a little nuclear hardware at them!!

However, because this vulnerability is mutual, it is to the advantage of neither side to destroy the opponent's cities, at least so long as the opponent has nuclear weapons with which to effect reprisal.

This same preoccupation with missiles at the expense of aircraft has resulted in our half-hearted effort to develop nuclear propulsion for aircraft.

Few people realize that one kiloton of nuclear explosive power will create 1,000 psi overpressure at 100 feet.

Fearful of inviting a military showdown with the West which they could not win, the Communists seek to undermine Western power where the nuclear might of the West is irrelevant -- in backwoods guerrilla skirmishes, in mob uprisings in the streets, in parliaments, in clandestine meetings of undercover conspirators, at the United Nations, on the propaganda front, at diplomatic conferences -- preferably at the highest level.

But where the core of NATO is concerned, the Secretary of State has not only reiterated the United States' profound attachment to the alliance, `` cornerstone '' of its foreign policy, but has announced that five nuclear submarines will eventually be at NATO's disposal in European waters.

The President was especially concerned about the deadlock in the nuclear test ban negotiations at Geneva.

Although americium was likely produced in previous nuclear experiments, it was first intentionally synthesized, isolated and identified in late autumn 1944, at the University of California, Berkeley by Glenn T. Seaborg, Leon O. Morgan, Ralph A. James, and Albert Ghiorso.

Another environmental concern is a significant drop in Lake Sevan's water level because of drawdowns for irrigation and the diversion of water to hydroelectric plants to compensate for the electric power lost through the inactivity of the nuclear plant at Metsamor.

The chronic energy shortages Armenia suffered in the early and mid-1990s have been offset by the energy supplied by one of its nuclear power plants at Metsamor.

The chronic energy shortages Armenia suffered in recent years have been largely offset by the energy supplied by one of its nuclear power plants at Metsamor.

* The current world record was set in 1999 at 100 picokelvins ( pK ), or 0. 000 000 000 1 of a kelvin, by cooling the nuclear spins in a piece of rhodium metal.

* In November 2000, nuclear spin temperatures below 100 pK were reported for an experiment at the Helsinki University of Technology's Low Temperature Lab.