The nuclear reactor core is the portion of a nuclear reactor where the nuclear reactions take place.

The nuclear meltdown at Chernobyl 20 years ago this month, even more than my launch of perestroika, was perhaps the real cause of the collapse of the Soviet Union five years later.

It is thus highly unlikely, though not impossible for a nuclear meltdown to occur.

MADRID Seen from Europe, the irrationality of the political and media discourse over nuclear energy has, if anything, increased and intensified in the year since the meltdown at Japan s Fukushima Daiichi power plant.

It builds up in the reactor in the rate proportional to the rate of fission, which is proportional to the reactor thermal power.

The ITER international experimental reactor is considered to be the next major step in fusion research.

In exchange, France would provide the nuclear reactor as the basis for the Israeli nuclear weapons program.

In dozens of countries, tens of thousands of tons of highly radioactive material has been kept in buildings that provide little of the usually rigorous protection surrounding radioactive material in reactors cores.

It is the region s largest nuclear plant and sole producer of atomic weapons materials.

In December 2010, Malaysia expressed interest in procuring South Korea's nuclear reactor technology.

At their core lie Iran and its nuclear program.

We are looking forward to joining the International Thermonuclear Energy Reactor project involving nuclear fusion, as a full partner.

When the Indian Ocean tsunami struck, the Madras reactor s core could be kept in safe shutdown condition because the electrical systems had been ingeniously installed on higher ground than the plant itself.

In both cases the feed material is placed inside a nuclear reactor and removed for processing after a period of time.

A full UN sponsored financial squeeze on Iran would jeopardize Russia s profits from providing nuclear fuel for the reactor, which is due to be commissioned soon.

First, there is ad hoc diplomacy, which succeeded in eliminating Libya s nuclear program and closing North Korea s nuclear weapons production reactor.

The eutectic temperature of this mixture is .

Still, the plant along with its spent nuclear fuel, extracted plutonium, and nuclear reprocessing waste poses significant radiological hazards that a military strike could disperse into the environment.

The Australian HIFAR nuclear reactor at Lucas Heights, Sydney, operated from 1958 to 2006 and has now been replaced by the OPAL reactor in 2006.

It's interesting, say, to take a 25 megawatt, 25 million watts, and you compare it to the standard big iron of an ordinary Westinghouse or Ariva, which is 1.2, 1.6 billion watts.

The time frame for carrying out the ITER experiments, developing a prototype fusion power plant and commercial power plants is at least 50 years or longer.

It was formed by glacial melting at the end of the Ice Age.

This is, in many ways analogous to the chain reaction that occurs in the fission of neutrons in a nuclear reactor and has been referred to by R.H. Dicke (reaching for a metaphor) as an optical bomb .

The forthcoming negotiations on the EU s 2014 2020 European budget are an opportunity to change direction and cut the funding for unpromising mega projectslike the International Thermonuclear Experimental Reactor (ITER) effort in southern France.

It is designed to provide a solid containment for the remnants of the reactor.

There was a serious danger that the contents of the nuclear reactor would seep into the soil, and then leak into the Dnepr river, thus endangering the population of Kiev and other cities along the riverbanks.

Within 50 million years, the pressure and density of hydrogen in the centre of the protostar became great enough for it to begin thermonuclear fusion.

And sitting next to that water in the cores was this little Deinococcus radiodurans, doing a backstroke, having its chromosomes blown apart every day, six, seven times, restitching them, living in about 200 times the radiation that would kill you.

Silicon carbide, SiC (carborundum) is a hard, high melting solid and a well known abrasive.

At a certain point the helium at the core of the star will reach a pressure and temperature where it can begin to undergo nuclear fusion through the triple alpha process.

This compound is used as flux in the smelting of secondary aluminium, to reduce or remove the magnesium content of the melt.

pass, at the heart of summer, at the heart of noon, I come upon you, my Promised Land,

The melting point of aluminium, , is typically reached within minutes of the start of a fire.

Invert

Heart

Assuming a steady rate of discharge, this alone is sufficient to raise global sea levels by 0.2 mm per year.

The mean temperature of the hot coolant leaving the reactor core was designed to be 648 C.

The system is based on a cooling system and water tanks built on top of the containment dome.

In BWRs, the control rods are inserted up from underneath the reactor vessel.

That is a heart.

I have a heart.

Horizontally first

Vertically first

Flip horizontally

Flip vertically