По английскому задали придумать изобретение какое нить, ну написать о нем, натолкните на мысли очень надо, только серьез

Nuclear reactor. The transformation of matter accompanied by the free energy only when the substance is stored energy. The latter means that the microparticles of the substance in a state with an energy of peace more than the other possibilities that exist in the transition. Spontaneous transition is always hampered by the energy barrier to overcome by microparticles should get outside for some amount of energy - the energy of excitation. The energy response is that in the next initiate transformation provided more energy than is required to initiate the process. There are two ways to overcome the energy barrier: either by the kinetic energy of the colliding particles, or by the binding energy of acceding particles. If you bear in mind the macroscopic scale of energy, it is necessary for the initiation of the reactions the kinetic energy should have all the first or at least some proportion of the particulate matter. This is achievable only if it warms up to the environment in which the energy of thermal motion is close to the value of the energy threshold that restricts the period of the process. In the case of molecular transitions, that is, chemical reactions, such an increase is typically hundreds of degrees Kelvin, in case of nuclear reactions - it is at least 107 K due to very high Coulomb barriers facing nuclei. Thermal excitation of nuclear reactions carried out in practice only in the synthesis of very light nuclei, where Coulomb barriers are minimal (fusion). Initiation of accession particles does not require a large kinetic energy, and hence does not depend on the temperature of the environment, as occurs at the expense of unused connections inherent particulate forces of attraction. But for the initiation of the reactions required by the particle. And if, again bear in mind not a single act of reflection, but a power in the macroscopic scale, it is possible only when a chain reaction. The latter occurs when a particle incite reaction reappear as products reaction. Schematic device heterogeneous reactor at thermal neutron 1 - control rod; 2 - biological protection; 3 - Thermal protection; 4 - inhibitor; 5 - Nuclear fuel; 6 - coolant. Construction A nuclear reactor consists of the following parts: The active zone of the nuclear fuel and moderated; Neutron reflector surrounding the core; Heat transfer; The system of regulation of the chain reaction, including emergency protection; Radiation protection; The remote control system.

Напишите про Таблицу Менделева.