thermo mech. Tech of obturation is:
A- thermafil
B- obtura
C- ultrafil
D- McSpadden.***
Mechanical Engineering is a branch of engineering concerned with the design, manufacture, operation and development of machines or devices used in various sectors of economic activities. In the definition of the British Encyclopedia, mechanical engineering is a branch of engineering concerned with the design, development, manufacturing, installation, operation of engines, machinery and manufacturing processes. It is particularly interested in power and movement [2]. A science that is interested in studying energy in all its forms and its effect on objects. It is a broad specialty that has to do with all aspects of life. Mechanical engineering relates, for example, to aerospace, aerospace, production, energy conversion, building mechanics, transportation, air-conditioning and cooling technology, modeling and simulation.
In the Middle Ages, in the Middle East and the Arabian Peninsula, mechanical engineering was referred to as the Arabic term "spiritual science". Spirituality was said to be related to energy rather than spirit in the religious sense of the term. A machine was called a spiritual trick.
Thermal energy produces the total energy of the movement of the internal molecules of matter in an unorganized way. The material consists of molecules or atoms only. The speed of kinetic energy varies in molecules as it is not limited to a specific velocity due to the temperature that controls the average speed of kinetic energy, Which reflect a direct relationship between them, so that increasing the temperature to increase the kinetic energy.
The movement of molecules varies depending on the state of the material. In the liquid state and the gaseous state, it is not restricted in its motion compared to the solid state, whose molecules are restricted and can not be strengthened except by vibration. The particles of matter can not be seen with the naked eye due to their very small size. The reason for the generation of kinetic energy is the presence of the speed factor. The molecules may interact with each other or interact with the ocean, due to the nature of the material leading to the generation of other types of energy.
In the Middle Ages, in the Middle East and the Arabian Peninsula, mechanical engineering was referred to as the Arabic term "spiritual science". Spirituality was said to be related to energy rather than spirit in the religious sense of the term. A machine was called a spiritual trick.
Thermal energy produces the total energy of the movement of the internal molecules of matter in an unorganized way. The material consists of molecules or atoms only. The speed of kinetic energy varies in molecules as it is not limited to a specific velocity due to the temperature that controls the average speed of kinetic energy, Which reflect a direct relationship between them, so that increasing the temperature to increase the kinetic energy.
The movement of molecules varies depending on the state of the material. In the liquid state and the gaseous state, it is not restricted in its motion compared to the solid state, whose molecules are restricted and can not be strengthened except by vibration. The particles of matter can not be seen with the naked eye due to their very small size. The reason for the generation of kinetic energy is the presence of the speed factor. The molecules may interact with each other or interact with the ocean, due to the nature of the material leading to the generation of other types of energy.
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