Initially academic calendar for the rules and regulations of the rules of the organization of the t

Initially academic calendar for the rules and regulations of the rules of the organization of the tests summary list of student assessment modified mechanism tests + and evaluate the curriculum developed for the Regulation vacations to the list of holidays after updates until 1430 opinions issued on inquiries received on the list of vacations the rights lockheed martin career of the teacher and the responsibilities [in the civil service system and instructions ministerial pension system and ending Service Employment
The search began for the concept of the material and components and Mknonadtha since ancient times, was not understood Walid twentieth century or the nineteenth century, lockheed martin career but already two centuries centuries several, specifically in light of ancient Greek culture, where science was in its infancy, lockheed martin career relying on intuition often, much less on the experience observation and lesson. The first attempts to interpret the material and analyze its inception came through the Greek philosopher Thales (624-548 BC. M), and a summary interpretation of that water is the strength of all the assets and different due to the difference in the case of water, where, and water originated all of the elements, and that life exists where there is water, and non-existent When lack thereof. Anxemins club (585-528 BC. AD) theory the air, and its conclusion that the article originated from the air, and that's why in the composition of the article is arent air and differing density. Hiraklaitus club (567-480 BC. AD) said that the theory of the fire is the fire in the composition of the original article. Said Amibdclais (483-430 BC. AD) that the origin of material consists of four elements: fire, air, earth and fire. Spread the theory of the four elements, and accepted by philosophers, led by Plato, who added a fifth element is the cytoplasm Hule means substance. To view Oseibes to the nature of the material and the nature of the composition, and concluded that each body is composed of particles of different species, lockheed martin career separated by a permanent vacuum of movement. In the fifth century BC setting lockheed martin career Dimgaritts the following assumptions about the article, which is a development of the idea of mentor to Oseibes for the article: lockheed martin career 1 - material composed of atoms, if we continue to divide lockheed martin career the material to finished units do not accept the division which atoms Atoms, which means non-division derived lockheed martin career from the word Greek Atomos 2 - atoms are separated from each vacuum. 3 - atoms differ among themselves in shape, lockheed martin career which gives the familiar characteristics, for example: * atoms of the water with a spherical shape and a smooth flow which gives a recipe they easily slip on each other. * Atoms dirt-shaped cuboid which earned recipe consistency and lack of flow. * Iron atoms which gives a rough recipe rigidity. * Acidity article comes from the sharp corners in the atoms. * The human body is composed of atoms, but it is a great slow movement, while the mind is composed of atoms of a small, fast-moving and active, but the Spirit consists of fine particles soft round. After a hundred years of Dimgaritts lockheed martin career questioned the Greek philosopher Aristotle in the presence of the space between the atoms and revived instead the theory of the four elements, which are based on that all the material is composed of four initial elements namely earth, fire, air and water, and there are four characteristics of primary produce from the Union of the four elements with each a hardness and heat and cold and liquidity, and there is raw material lockheed martin career intervention in the material composition which cytoplasm, and thanks to which can be converted to each other. Influenced the evolution of this idea in chemistry and despite contributions of Muslim scholars, led by Abu chemistry and experimental approach Geber, but their efforts in the structure of the atom is not mentioned. Pecan that came to criticize the blind imitation of the idea of Aristotle criticized the idea of the four elements. Experiments Boyle: in 1662 noted French scientist Robert Boyle Robert Boyle from his experiences on the gases that the volume of gas at least if you increased the pressure on it. Has led him to conclude that the gas (which is one of the states of matter) consists of minutes a small, including spaces, at least these blanks lockheed martin career when increasing the pressure on them. The idea of bringing lockheed martin career all the components of Dikratts lockheed martin career article to appear again. Dalton's theory: in 1803 gave the English scientist John Dalton John Dalton Dalton theory known as the theory of atomic or atomic theory, lockheed martin career which includes the following assumptions: 1 - material composed of atoms are called small minutes. 2 - atoms of one element have the same qualities in terms of shape and mass, and differ in these traits from other elements. 3 - can not be split atoms during the chemical reaction. 4 - the chemical reaction is the union of an atom or more of an item with an atom or more of the other element. Rejected by many scientists time Dalton theory (IAEA), for refusing to acceptance, but for some reason, but what meets the eye or feel about hands, has Ghali Some scientists reject the theory, and some even accused Dalton delirious, and trying to handcuff science to the philosophy of the ancients, lockheed martin career on the grounds that the idea of corn is an old idea back to the era of ancient Greek. Avogadro introduces the concept of the molecule in the world of publishing in 1811 an obscure Italian named Amadeo Avogadro Amadeo lockheed martin career Avogadro in the journal Nature published an article in which he talks about the existence of other particles called molecules of the material. Electrolysis experiments and their role in the evolution of the concept of installing Article
Through experiments in Faraday electrolysis has been noted for the first time to the existence of a relationship between the substance and electricity and contain atoms of elements on the negatively charged particles. Experiences of electrical discharge and its role in the evolution lockheed martin career of the concept of fitting article in 1879 by Sir William Crookes Sir William lockheed martin career Crookes designed the first tube emptying glass connects the terminal inside Blouhan Vzayan, has been linked to the tablets Filzaan both the cathode and the anode to the source of high voltages, and after the withdrawal of the air part of inside the tube pump-mediated Ghazlr, there have been a surprise flew Blkr her joy, it has formed a green beam of light metals are developed between the two tablets, which means the force of electric current through a vacuum, which was dreamed up by scientists Crocs but did not elaborate on what these rays deity that appeared to him and all that reached it is issued from the cathode (