the combination of two or more light nuclei to yield a heavier nucleus
The combination of low-mass atomic nuclei into heavier nuclei
A nuclear reaction that takes place only at very high temperatures. Two light atoms, often hydrogen, fuse together to form a larger single atom, releasing a vast amount of energy in the process.
A process in which two smaller atomic nuclei fuse into one larger nucleus and release energy; the sources of power in a hydrogen bomb.
the combination of light nuclei to produce a nucleus of heavier mass, accompanied by the release of a large amount of energy.
A nuclear reaction in which two small atomic nuclei fuse to form a larger one. The process releases large amounts of energy because the mass of the product is less than the mass of the fusing particles. The mass deficit corresponds to an energy release (according to Einstein's famous E=mc2 equation). Stars generate their energy by nuclear fusion. In the Sun hydrogen fuses to helium with the release of energy.
The combination of the nuclei of certain extremely light elements, especially hydrogen, effected by the application of high temperature and pressure. Nuclear fusion causes the release of an enormous amount of heat energy, comparable to that released by nuclear fission. The principal by product of nuclear fusion is helium.
The process by which heavier atomic nuclei are built from lighter ones, releasing great amounts of energy in the process.
is the supposed stellar process by which the nucleii of four hydrogen atoms collide with sufficient energy to coalesce forming a single helium nucleus having slightly less mass than the original hydrogen. The mass which is destroyed in fusion reappears as radiant energy which slowly flows away to the surface. In the fusion, two protons are changed into two neutrons, two anti-electrons, and two neutrinos. The neutrons remain in the fused helium nucleus, the anti-electrons annihilate with two electrons (liberating more radiant energy), and the neutrinos escape the star immediately, travelling at the speed of light. On Earth, a type of nuclear fusion has been sustained for one hundred pico-seconds. No continuing fusion process has been produced. To remain luminous by conventional theory the star must fuse hydrogen continuously (Rudeaux and de Vaucouleurs, pp. 316-9). nucleosynthesis, see nuclear fusion
The joining of atoms under tremendous temperatures and pressures to create atoms of a heavier element. In the Sun, four hydrogen atoms are fused to create each helium atom. Two of the hydrogen's protons become neutrons in the process. ( go to first use in the text)
Combination of two small atomic nuclei to produce one larger nucleus.
relies on forcing two hydrogen atoms together, and in the process destroying some extra matter that is converted into energy (called H-bomb)
The process in which light nuclei fuse together to make one heavier nucleus, releasing energy as they do so.
fusion. Compare with nuclear fission. Combination of two smaller nuclei to form a larger nucleus. The larger nucleus has higher binding energy per nucleon than the original nuclei, and fusion results in the release of energy.
Mechanism of energy generation in the core of the Sun, in which light nuclei are combined, or fused, into heavier ones, releasing energy in the process.
The joining of atomic nuclei under tremendous temperatures and pressures to create nuclei of heavier elements. In the Sun, four hydrogen nuclei are fused to create a single helium nucleus. Two of the hydrogen's protons become neutrons in the process.
A physical process whereby two or more atomic nuclei are combined to make a larger one whose mass is slightly smaller than the sum of the small ones. The small amount of mass that seems to be lost is actually converted into energy as described by Einstein's famous equation "Energy = Mass times the Speed of Light squared." This is the source of the Sun's energy.
the process of combining two lighter elements to form a heavier element. Nuclear fusion is the source of energy in stars. The most common nuclear fusion is that of hydrogen to helium. The most difficult thing to accomplish with nuclear fusion is to heat the elements to the necessary temperature for the reaction to occur. It takes around ten million degrees Kelvin before hydrogen will fuse into helium
The process by which two nuclei collide and coalesce to form a single, heavier nucleus.
A physical process which takes light elements and combines them into a heavier element. An example is the fusion of two Hydrogen atoms to form a Helium atom. This is the process which gives stars (including our Sun) heat and energy so that they shine. Though fusion is not yet used to produce electricity, scientists are working on this method, which will provide a nearly-inexhaustible source of cheap electrical energy, with little of the pollution or danger of nuclear fission. Fusion is also the force behind some very powerful nuclear weapons—the "H-Bomb".
Nuclear fusion takes place when the nuclei of two atoms collide and fuse together to form one heavier element. Nuclei have the same charge and will initially repel each other, so it takes a huge amount of energy to fuse them together. This process happens constantly within the Sun, converting hydrogen into helium. These reactions provide sufficient energy to heat and light the Earth. It is also the process that led to the creation of the Sun 4.6 billion years ago. As a cloud of dust in space contracted, it heated to the point where fusion could occur and the early Sun formed.
The fusing together of elements to produce either electrically-charged particles or heat, which is then harnessed to produce electricity. This technology is currently being researched but thus far is not cost-effective. Some scientists believe that it is possible to produce non-radioactive nuclear power with this type of technology.
Nuclear fusion occurs when two small atoms are squeezed together to form a heavier atom. For example, in stars, hydrogen atoms undergo nuclear fusion and helium is created. Nuclear Power
The combining together of small atomic nuclei into larger ones, with the release of energy.
the combining of the nuclei of lighter elements to produce heavier elements and energy; the process which provides energy for stars
The combination of two light nuclei to form a heavier nucleus with the release of some binding energy.
Atomic nuclear processes which involve the fusing of nuclei with an accompanying release of energy.
A potentially limitless source of energy in which nuclei are fused, with an accompanying release of energy.
A nuclear reaction in which atomic nuclei with low atomic numbers fuse to form a heavier nucleus, accompanied by the release of large amounts of energy. Nuclear fusion is used in nuclear weapons but not yet for power generation.
A nuclear process whereby several small nuclei are combined to make a larger one whose mass is slightly smaller than the sum of the parts. The difference in mass is converted to energy according to Einstein's famous equation, E=mc2 where he discovered that the energy contained in such a reaction (E) is equivalent to the difference in mass (m) times the square of the speed of light (c) which is a very, very large number. This is the source of the Sun's energy.
The process of releasing energy by combining hydrogen atoms to form helium, or more generally, to combine light nuclei into heavier ones. Nuclear fusion appears to be the source of the energy of the Sun and of stars.
A nuclear process that releases energy when lightweight nuclei combine to form heavy-weight nuclei.
The process of forming a heavier nucleus from two lighter ones. Synonym: atomic fusion. Synonym: fusion. Related to fission. Related to thermonuclear.
Energy is released when light atoms, like hydrogen and helium, combine into heavier ones. This is the reaction that powers the Sun. Nuclear fission occurs when heavier atoms like uranium and plutonium split into lighter ones, which also releases energy. Nuclear reactions are far more powerful than chemical ones.
One of the two main processes in a star in which hydrogen is blown outward from the star's center.
nuclear process where several small nuclei are combined to form a larger one
Nuclear change in which two nuclei of isotopes of elements with a low mass number (such as hydrogen-2 and hydrogen-3) are forced together at extremely high temperatures until they fuse to form a heavier nucleus (such as helium-4). This process releases a large amount of energy. Compare nuclear fission.
the process in which hydrogen atoms are combined or fused into helium atoms. The sun changes 600 million tons of hydrogen into 596 tons of helium every second, and loses 4 million tons of mass that has been converted into light and heat energy.
fusion nuclear] the joining of the male and female pronuclei into one nucleus.
The process of fusing together certain light element ( e.g. hydrogen) to yield heat and radiation, as in the H-bomb and the yet to be fully developed fusion reactor.
the process used by stars to generate energy: less-massive nuclei are fused together under extremely high temperatures and densities to form more-massive nuclei plus some energy. The energy comes from the transformation of some of the mass into energy.
A nuclear process whereby several small nuclei are combined to make a larger one whose mass is slightly smaller than the sum of the small ones. The difference in mass is converted to energy by Einstein's famous equivalence E=mc2. This is the source of the Sun's energy and, ultimately, of (almost) all energy on Earth.
A process where atoms are joined and tremendous amounts of heat energy are released.
Smaller atomic nuclei combining to form larger atomic nuclei, with small amounts of mass changing into huge amounts of energy (p.92-93).
The merging of lightweight atomic nuclei into more massive nuclei. A small amount of the combined mass is lost because it is converted into energy.
is the joining of the nuclei of atoms to produce heat.
In physics and nuclear chemistry, nuclear fusion is the process by which multiple nuclei join together to form a heavier nucleus. It is accompanied by the release or absorption of energy depending on the masses of the nuclei involved. Iron and nickel nuclei have the largest binding energies per nucleon of all nuclei and therefore are the most stable.