Sentences with phrase «in nuclear fission»

There's no certainty that massive investments in nuclear fission won't become «sunk costs» in the face of exponentially cheaper solar power.

Nuclear fission also occurs in a nuclear bomb, but for nuclear energy the fission process is controlled and takes place in a nuclear fission reactor (Cattenom is pictured).

If you want to go even further into energy density you can use the stored energy of the Big Bang in nuclear fission or the simple conversion of mass to energy in nuclear fusion.

To illustrate chain reactions in nuclear fission, a table filled with mousetraps represents the atoms and pingpong balls stand in for the new neutrons created from the split.

So it's a serious entrant, and from my potentially biased point of view in the nuclear fission category, I don't know many other entrants that you look and say, «Okay, if you go from paper to real then this is a meaningful contribution to cheap energy / global warming as an incredible problem.»

Not exact matches

Meitner's work in elucidating the process of nuclear fission in 1938 is well accepted by her fellow physicists — but Otto Hahn, who won the 1944 Nobel Prize in Chemistry «for his discovery of the fission of heavy nuclei,» barely acknowledged her contribution.

In hindsight, creating nuclear weapons and controlled fission in the form of nuclear energy was easIn hindsight, creating nuclear weapons and controlled fission in the form of nuclear energy was easin the form of nuclear energy was easy.

Officials from the National Aeronautics and Space Administration and U.S. Department of Energy, at a news conference in Las Vegas, detailed the development of the nuclear fission system under NASA's Kilopower project.

The bulk of the session, in which Musk shared the stage with Y Combinator head Sam Altman, was far - ranging and bizarre, twisting from nuclear fusion versus fission to Mars colonization.

The nuclear power plants in use around the world today use fission, or the splitting of heavy atoms such as uranium, to release energy for electricity.

In 1931 he gave specific figures about nuclear fusion as a source of energy far superior to nuclear fission.

Pope Benedict says the effect of Holy Communion is a radical change, a sort of «nuclear fission» which penetrates to the heart of all being, beginning with ourselves, a «process which transforms reality, a process which leads ultimately to thetransfiguration of the entire world... where God will be all in all» (Sacramentum Caritatis 11).

The quest to understand delayed neutron emission and nuclear fission continues in modern nuclear physics laboratories.

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

Meitner and Frisch were able to provide an explanation for what he saw that would revolutionize the field of nuclear physics: A uranium nucleus could split in half — or fission, as they called it — producing two new nuclei, called fission fragments.

Briefly, fissioning atoms in the nuclear reactor's fuel emit neutrons that are traveling too fast to efficiently cause other atoms to fission.

The competing SFR design banks on a novel fission concept: bombarding uranium atoms with neutrons of much higher energy than those used in a traditional nuclear plant.

In 1939 Oppenheimer and his student Hartland Snyder published a paper in the same issue of the Physical Review that featured Niels Bohr and John Wheeler's seminal article on the mechanism of nuclear fission -LSB-..In 1939 Oppenheimer and his student Hartland Snyder published a paper in the same issue of the Physical Review that featured Niels Bohr and John Wheeler's seminal article on the mechanism of nuclear fission -LSB-..in the same issue of the Physical Review that featured Niels Bohr and John Wheeler's seminal article on the mechanism of nuclear fission -LSB-...]

Karl was a research assistant for Harold Urey in 1938 when news of the reality of nuclear fission arrived.

Most nuclear reactors use uranium fuel that has been «enriched» in uranium 235, an isotope of uranium that fissions readily.

Radioactive iodine is a common byproduct of nuclear fission and is a pollutant in nuclear disasters including the recent meltdown in Japan and the 1986 Chernobyl disaster.

By far the most rigorously researched of the Tintin stories, it features nuclear fission, the effects of gravitation in space and why meteorites make lunar craters, as well as side references in Professor Calculus's log book to the «constant of solar radiation» and the «limits of the solar spectrum in the ultraviolet».

Only four years after German scientists discovered nuclear fission, scientists in America took the first step toward harnessing it.

Lise Meitner (1878 - 1968) In 1938, after she escaped from the Nazis to Sweden, she carried out the key calculations that led to the discovery of nuclear fission.

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.

The neutrons induce nuclear fission in a film of U-238.

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

I was very surprised to read in your editorial that nuclear fission reactors are accepted as one of the energy...

Indeed, he has evidence: the speediest drop in greenhouse gas pollution on record occurred in France in the 1970s and «80s, when that country transitioned from burning fossil fuels to nuclear fission for electricity, lowering its greenhouse emissions by roughly 2 percent per year.

A few years ago, DARPA, which prides itself on promoting far - out projects, proposed spending $ 30 million on a «hafnium bomb,» a type of nuclear weapon intended to release energy from atomic nuclei without either fission or fusion, using an approach similar to how energy is extracted from electrons in a laser.

Energy dissipation is a key ingredient in understanding many physical phenomena in thermodynamics, photonics, chemical reactions, nuclear fission, photon emissions, or even electronic circuits, among others.

And that means there may be two direct paths for radioactive particle byproducts of nuclear fission, such as cesium 137 and iodine 131, to escape and spread radiation — cracks in containment as well as the spent fuel pools now open to the air.

Iran's attempt to develop nuclear weapons will not be the last challenge faced in a journey that began with the world's first fission bomb test during World War II

The question then becomes what to do with that abundant uranium once it's been fissioned in a nuclear reactor.

From the fascinating (an intricately diagrammed explanation of nuclear fission) to the terrifying (an in - depth hypothetical example of what would happen if a 150 kiloton nuclear explosion occurred in New York City), the site covers all the bases.

I was very surprised to read in your editorial that nuclear fission reactors are accepted as one of the energy providers that should feature in the UK's energy generation portfolio (9 November, p 3).

The idea remains that fast reactors, which get their name because the neutrons that initiate fission in the reactor are zipping about faster than those in a conventional reactor, could offer a speedy solution to cleaning some nasty nuclear waste, which fissions better with fast neutrons, while also providing electricity as a by - product.

Elements in this so - called island of stability could act as powerful nuclear fuel for future fission - propelled space missions.

Now, however, physicists with Daya Bay report data that support a much simpler explanation: Scientists are merely overestimating the number of neutrinos born from the various radioactive nuclei produced in the fission of one component of standard nuclear fuel.

It has many sources, including the sun, electronic devices such as microwaves and cellphones, visible light, X-rays, gamma waves, cosmic waves, and nuclear fission, which is what produces power in nuclear reactors.

Antineutrinos are a by - product of the fission in a nuclear reactor, in which an atomic nucleus of a radioactive element such as plutonium splits into lighter elements.

For example, the treaty forbids igniting devices based on nuclear fission; Küntzel draws attention to how, just a few weeks after West Germany signed the treaty, a working paper published by the Science and Politics Foundation in Ebenhausen emphasised that research into detonating H - bombs with a laser beam was permitted by the treaty, and should be encouraged.

In addition we have provided training on a broad range of topics including introduction to nuclear fission, types of reactors, radiation protection, safeguards, regulations and nuclear safety culture.

The exceptional scientific and technical abilities of the HRIBF staff and instrumentation enabled ground - breaking achievements including the first measurement with a reaccelerated unstable beam in North America, the first acceleration of neutron - rich fission fragments leading to the confirmation of the doubly magic nature of the heavy tin isotope 132Sn, pioneering experiments on the giant quadrupole resonance in nuclei, and dramatic new insights into numerous nuclear reactions that drive the evolution of the cosmos.

Natural nuclear fission reactors may provide reasonable explanations for other «NASA mysteries» including: (1) Our Moon having a soft or molten core; (2) Tiny planet Mercury having a magnetic field; (3) Mars displaying evidence of an ancient magnetic field; (4) Our Moon displaying evidence of an ancient magnetic field; (5) Jupiter's moon Ganymede having an internally generated magnetic field; (6) Jupiter's moon Io being extremely volcanic; (7) Saturn's moon Enceladus showing evidence of internal heating; and, (8) Evidence of internal heat generation in Pluto's moon Charon:

We produce neutrons by nuclear fission for use in research.

Take a look at these two graphs showing the probability (called the cross-section in nuclear lingo) of capture and the probability of fission as a function of neutron energy for U-235 and U-238.

Brian Wirth, UT - ORNL Governor's Chair for Computational Nuclear Engineering, was nominated by the AAAS section on physics for «advancing knowledge of radiation damage mechanisms and fuel performance in fission and fusion energy via multiscale modeling using high performance computing validated by experiments.»

He leads the Fuel Material and Chemistry Focus Area of the Consortium for Advanced Simulation of Light Water Reactors, a DOE Energy Innovation Hub, as well as Scientific Discovery through Advanced Computing (SciDAC) projects on plasma surface interactions and fission gas behavior in nuclear fuel.

It is designed to provide an unfailingly safe and economical source of clean energy from nuclear fission, SMR - 160 incorporates passive features in its operation to ensure utmost safety and reliability.