Introduction to Physics

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Physics is the science of Nature par excellence, in the broadest sense. The purpose of Physics is to understand the laws of Nature. It is an exciting endeavor in a laboratory that, after all, is as large as the entire Universe. Physicists also explore the reality that eludes our senses. Physics’ interest ranges from the infinitely small world of subatomic particles, to stars, galaxies and the cosmic vastness of space and time in which the universe moves. No natural phenomenon is excluded from the interests of a physicist. The physicist is a scholar who has maintained the “curiosity” typical of a child who asks “why” about anything and tries to trace back to reason, logic, numbers, any event or phenomenon, without setting conceptual or material limits. Physics is not a science aimed at particular aspects of nature, as chemistry, biology, geology, medicine may be considered, but teaches how to question nature, interpret it and codify its behavior into simple laws. Physics studies involve both practical, applied, technological aspects, with the design and implementation of new instruments and technologies, and theoretical aspects, with the formulation of theories with a high degree of mental abstraction. The physicist is characterized by extreme open-mindedness, is able to deal with even new phenomena, and is particularly attracted to exploring subjects about which little or nothing is known.

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