Sentences with phrase «nuclear reactions in»

«Due to nuclear reactions in stars, like our Sun, over time they become brighter,» says Dan Lunt, co-author of the study.

19 I. 3 Sources of Energy Solar energy (99.985 %)-- comes from sun (nuclear reactions in sun) Drives wind, ocean currents, and waves Geothermal energy -LRB-.013 %)-- originates as heat from within Earth from decaying radioactive material.

Solar energy (99.985 %)-- comes from sun (nuclear reactions in sun) Geothermal energy -LRB-.013 %)-- originates as heat from within Earth from decaying radioactive material.

For many years the number of solar electron neutrinos detected on Earth was only a third of the number expected, according to theories describing the nuclear reactions in the Sun.

As galaxies age, they develop greater concentrations of heavy elements formed by the nuclear reactions in the cores of stars and in the cataclysmic explosions of supernovae.

The glowing gaseous shrouds in the nebula were shed by the central star after it ran out of fuel to sustain the nuclear reactions in its core.

Over an 18 - month period, they worked in a windowless room, scribbling on a blackboard, feverishly figuring out how nuclear reactions in successive generations of stars could create the elements in the periodic table.

Standard models of how the sun shines tell exactly how many neutrinos should be created by nuclear reactions in the solar core.

The aerogel collector also gathered microscopic interstellar dust that may have traveled from other galaxies, which could offer researchers a glimpse of the nuclear reactions in distant stars.

Stars derive their energy from nuclear reactions in which the nuclei of light elements fuse to make heavier elements.

«If you remember the Fukushima nuclear reaction in Japan [in 2011], no one could get in there to turn the appropriate knobs to shut down the meltdown,» he says.

e-cat dramatically switched to a completely different nuclear reaction in the last year, without changing anything — not even fuel — in their apparatus.

Not exact matches

Matter can be «destroyed» in a nuclear reaction.

Should the earth and all its resident populations be devoured this evening by a chain reaction of nuclear holocausts, must that too be in at least partial accord with God's aim at «universal intensity of satisfaction?»

For instead of foresight and planning, there is only reaction, and the great problem is that it is never possible to know in advance when it will be too late to react to a calamitous environmental change — especially in a nuclear age!

Honestly if either of those calls were in the Chelsea box there would be a nuclear reaction from the Gunners

(Reuters)- Government scientists have not been able to replicate a chemical reaction suspected of causing a radiation leak at a U.S. nuclear waste dump in New Mexico, complicating efforts to understand what went wrong, a U.S. Energy Department official said Friday.

Their theory, known as Big Bang Nucleosynthesis, included detailed predictions of how much of each element would have been produced in the roughly three minutes of nuclear reactions.

Aaronson compares it to the first self - sustaining nuclear reaction, achieved by the Manhattan project in Chicago in 1942.

The anniversary of the first controlled nuclear chain reaction marks an achievement of immigrants who served America in World War II.

This «quarksplosion» would be an even more powerful subatomic analog of the individual nuclear fusion reactions that take place in the cores of hydrogen bombs.

Among the main ingredients is helium - 3 (He - 3), a vestige of the Big Bang and nuclear fusion reactions in stars.

Science has created a map that provides a snapshot of the number of nuclear reactors in operation and under construction worldwide, locations of power plants in relation to seismic hazard zones, and reactions to events in Japan in some countries.

For instance, they were involved in debunking cold fusion in 1991, which was a hypothetical nuclear reaction that could occur around room temperature.

But the properties of these unbound nuclei can still be investigated by producing them in a nuclear reaction and detecting their decay products.

From the way the object bent the light, Andrew Gould of Ohio State University in Columbus and colleagues have now found that it is a brown dwarf — a «failed star» with too little mass to sustain the nuclear reactions that power stars.

That force plays a key role in the nuclear reactions that power the sun.

A new option for powering the sun appeared in the 1930s when physicists began to understand the energy released in nuclear reactions.

Sometimes, a few seconds after the fission occurs in a nuclear chain reaction, additional neutrons are released.

After Szilárd fled the Nazis, he made his way to England and then New York, where he worked at Columbia University on ways to create a nuclear chain reaction, an idea he had conceived while waiting at a stoplight in London a few years earlier.

At the same time, new questions have emerged, and there's still a lot to learn about the basic nuclear properties that drive the chain reaction and its impact on energy production here on Earth and elsewhere in our universe.

As a result, the nuclear chain reaction in their Chicago experiment could have spiraled out of control, with potentially devastating results.

In case of an accident, multiple systems would keep cooling water flowing to the core, and control rods would quickly drop, automatically shutting down the nuclear reactions.

Using a rare isotope beam created at NSCL, the team determined the last unknown nuclear - reaction rate affecting the production of aluminum - 26 in classical novae.

If enough material, mostly in the form of hydrogen gas, accumulates on the surface of the white dwarf, nuclear fusion reactions can occur and intensify, culminating into a cosmic - sized hydrogen bomb blast.

Could these conditions initiate or facilitate nuclear fusion, as suggested in the recent movie «Chain Reaction»?

They studied boulders from the New Zealand site where the glacial wood had been found, measuring the concentrations in the rocks of radioactive isotopes beryllium - 10 and chlorine - 36, which are produced by nuclear reactions between minerals and cosmic rays.

Germany has also decided to give up nuclear power,» a Jiangmen resident said in a post on the Jiangmen government's page on the popular social networking site Weibo, under registered name of «YOoUuNnGg», in reaction to its decision to scrap the uranium processing project.

In the movie, a «chain reaction» occurred, but it was difficult to determine if this was a nuclear chain reaction or just a big hydrogen explosion.

When a white dwarf grows heavier than this, it can no longer support its own weight and starts collapsing, triggering nuclear reactions that rip the star to shreds in a type 1a supernova.

Others are produced in nuclear reactions inside the Sun.

The equations of quantum mechanics do a fantastic job describing the behavior of particles in an atom smasher, the nuclear reactions that make the sun shine, and the chemical processes that underlie biology.

Fermi, despite being an immigrant, was put in charge of constructing an «atomic pile» (nowadays nuclear reactor) to verify the chain reaction theory.

When the head of the Atomic Energy Commission at the time, Lewis Strauss, infamously quipped in 1954 that electricity would become «too cheap to meter,» he was likely referring to nuclear fusion, not nuclear fission, the atom - splitting reaction that powers conventional nuclear power plants today.

In addition to neutrons, the fission reaction of nuclear fuels like plutonium or uranium releases antineutrinos.

Finally, Bergeron summed up the events so far: «Based on what we understand, the reactor has been shut down, in the sense that all of the control rods have been inserted — which means there's no longer a nuclear reaction.

They are created in nuclear reactions, for example, in the sun, in stars.

«In order to spread nuclear technologies, you have to have the people who have the expertise in nuclear engineering, who know about nuclear materials and chain reactions and things like that — the same expertise for nuclear bombIn order to spread nuclear technologies, you have to have the people who have the expertise in nuclear engineering, who know about nuclear materials and chain reactions and things like that — the same expertise for nuclear bombin nuclear engineering, who know about nuclear materials and chain reactions and things like that — the same expertise for nuclear bombs.

In December 1942 Enrico Fermi achieved the first self - sustaining nuclear chain reaction, harnessing the process that would be used to lay waste to the Japanese cities of Nagasaki and Hiroshima in August 194In December 1942 Enrico Fermi achieved the first self - sustaining nuclear chain reaction, harnessing the process that would be used to lay waste to the Japanese cities of Nagasaki and Hiroshima in August 194in August 1945.

It could also find use in stock market predictions and complex scientific simulations of random processes, such as biological interactions or nuclear reactions.