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How to learn math and physics? Category mathematics and physics helps you in calculating, the procedure for calculating percentages, addition, multiplication, division, fractions to be calculated and all math operations.

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# How is nuclear energy? | Physics

## How is nuclear energy? Atom somewhat resembles the solar system in miniature, with a core in the middle of the particles

Atom somewhat resembles the solar system in miniature, with a core in the middle of the particles - electrons in its outer part orbiting orbitals per layer. Nucleus consists of protons and neutrons. Atom of an element that differ in the number of neutrons, are called isotopes. There are two different ways of obtaining energy from the atom. Atom can break up into two lighter, or two atoms combine to produce a single heavier. names of these two processes are fission and fusion. In both cases, releases large amounts of energy, because in these reactions of some of the initial mass is gone, completely transforming into energy.
Atomic and nuclear energy are the same things, but its more accurate to talk about nuclear energy, because the reactions of fission and fusion of nuclei of atoms involved, and it originates from mass which disappears and is converted into energy. occurs when atomic fission, an atom is split into two simpler atoms and release large amounts of energy. always free and neutrons, which are expelled with great force, collide with other atomic nuclei, causing them to fission. And from these nuclei can be released neutrons that will collide with other atoms, and so the reaction goes on. Once you start, the reaction causes the other, that chain reaction. Because of this nuclear reaction can be explosive - in the atomic bomb -.
Nuclear fission reactions were detected experiments on uranium, which was bombarded with neutrons. Uranium is an element of in which the most easily cause a large release of fission energy. Generally speaking, the easiest way to cleave the elements heavier than thorium. Most are used by different isotopes of uranium and plutonium. When fusion is used lighter elements, especially hydrogen and its isotopes - deuterium and tritium - which fusing to form helium nuclei. Solar energy comes from nuclear fusion. Not only the sun, but the energy of the star derives from fusion reactions of hydrogen nuclei. Energy released from the sun partially came to us as light and heat.
Nuclear energy is now, unfortunately, is still used for military purposes - they bring the whole superpower arsenals of nuclear weapons -.
most peaceful purposes is used in nuclear power plants to generate electricity. There is a controlled nuclear reaction used in nuclear reactors for the production of thermal energy. heating of water creates a steam that drives turbines, which convert heat into electricity using a generator power. Another important use of atomic energy for peaceful purposes, the use of radioactive isotopes in medicine.
picture above you can see the production of nuclear energy and its conversion into electricity. Since the reactor core - purple - through the turbine and generator to your home ..
wastes from nuclear fuel is dangerous radioactive so it must sink to the seabed or buried deep in the earth. testing of nuclear weapons and reactors can cause damage to long-term health hazards due to release of radioactive materials into the air.

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