7.- MECHANICS

Classical mechanics deals with the study of the rigid body as well as systems of a finite or infinite number (continuous medium) of degrees of freedom, while quantum mechanics studies systems of small scale or little energy.

As in any experimental science, every mechanical study of a body involves an analysis process, from a physical and mathematical perspective, and experimentation. But, unlike other scientific disciplines, in mechanics it is not so complex to study the theoretical behavior interpreted in a real system.

Thanks to contributions of many scientists, such as Newton, Lagrange, Hamilton or Schrödinger, some fundamental laws or principles of mechanics can be established:

• Newton's laws.
• Principle of conservation of momentum.
• Principle of conservation of energy.
• Principle of conservation of angular momentum (or kinetic) and fundamental equation of rotational dynamics.

Given the extension of its field of study, it is convenient to mention the most representative fields:

• Engineering.
• Statics.
• Dynamics.
• Fluid mechanics.
• Thermodynamics and heat transfer.
• Science, elasticity and strength of materials.
• Numerical analysis (finite element method).

Due to the constant evolution of the industry, the branches of mechanical engineering, automotive and automobile engineering, calculation of structures, development of machinery, as well as their installation and maintenance,are the most developed today.