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Universidad de Oriente
Núcleo de Anzoátegui
Escuela de Ingeniería y Ciencias Aplicadas
Unidad de cursos básicos
Cátedra: ingles instrumental









Revisado por: Autores: C.I.:
Mari carmen Araguache Juan Rodríguez 25.607.412Luis Lunar 26.256.495
Miguel Carmona 25.245.642



Puerto La Cruz, noviembre de 2013
Introducción

La comunicación escrita es una de las disciplinas más útiles que se pueden aprender hoy en día, ya que permite una trasmisión de información más eficiente a laspersonas.
En esta disciplina se encuentra múltiples normas como los signos de puntuación, gramática, tiempos verbales, oraciones, entre otros.
Los tiempos verbales especialmente útil cuando se trata de especificar cuándo se está realizando dicha acción y las oraciones son el cuerpo del texto las cuales regidas por sintaxis y gramática dan sentido a la lectura.














INDICEIntroducción…………………………………………………………….. 3
Desarrollo………………………………………………………………...4-11

Texto………………………………………………………………………4-5

Preguntas y respuestas…………………………………………………6-11

Conclusiones……………………………………………………………..12
Anexos…………………………………………………………………….13
















Nuclear fusión
Fusion power is the power generated by nuclear fusion processes. In fusion reactions, two lightatomic nuclei fuse to form a heavier nucleus (in contrast with fission power). In doing so they release a comparatively large amount of energy arising from the binding energy due to the strong nuclear force which is manifested as an increase in temperature of the reactants. Fusion power is a primary area of research in plasma physics.

The term is commonly used to refer to potential commercialproduction of net usable power from a fusion source, similar to the usage of the term "steam power". The leading designs for controlled fusion research use magnetic (tokamak design) or inertial (laser) confinement of a plasma. Both approaches are still under development and are years away from commercial operation in which heat from the fusion reaction is used to operate a steam turbine which driveselectrical generators, as in existing fossil fuel and nuclear fission power stations.

The origin of the energy released in fusion of light elements is due to an interplay of two opposing forces, the nuclear force which combines together protons and neutrons, and the Coulomb force which causes protons to repel each other. The protons are positively charged and repel each other but theynonetheless stick together, demonstrating the existence of another force referred to as nuclear attraction. This force, called the strong nuclear force, overcomes electric repulsion in a very close range.


The effect of this force is not observed outside the nucleus, hence the force has a strong dependence on distance, making it a short-range force. The same force also pulls the neutrons together, orneutrons and protons together. Because the nuclear force is stronger than the Coulomb force for atomic nuclei smaller than iron and nickel, building up these nuclei from lighter nuclei by fusion releases the extra energy from the net attraction of these particles. For larger nuclei, however, no energy is released, since the nuclear force is short-range and cannot continue to act across stilllarger atomic nuclei. Thus, energy is no longer released when such nuclei are made by fusion; instead, energy is absorbed in such processes.
Fusion reactions of light elements power the stars and produce virtually all elements in a process called nucleosynthesis. The fusion of lighter elements in stars releases energy (and the mass that always accompanies it). For...