The word electricity can be clearly seen to have its etymological origin in the Greek term electron that can be translated as "amber". Starting from the same it is established that the person who coined this term was more specifically the English scientist William Gilbert who in the XVI century spoke of "electrical" to mention the phenomena of loads of attraction that the Greeks already discovered.
The electricity is a physical property manifested through the attraction or rejection exercising together with the different parts of matter. The origin of this property is found in the presence of negatively charged components (called electrons ) and others with a positive charge ( protons ).
Electricity, on the other hand, is the name that receives a kind of energy that is based on that physical property and that manifests itself both in motion (the current ) and in the state of rest (the static ). As an energy source, electricity can be used for lighting or to produce heat, for example.
Not only man generates electricity manipulating different factors: nature produces this energy in storms, when the energy transfer that occurs between a part of the atmosphere and the surface of the planet causes a discharge of electricity in the form of lightning. Natural electricity is also found in biological functioning and allows the development and activity of the nervous system.
Beyond these natural phenomena, the human being has been dedicated to generating electricity to start up all kinds of machines, devices and transport systems.
As we say, today electricity is essential because thanks to it we carry out a myriad of tasks and we have the possibility to enjoy applications that facilitate us and improve our quality of life. Thus, thanks to that we have lighting and we can make use of a series of devices such as washing machines, refrigerators, televisions, computers or air conditioning systems.
It is clear, therefore, that electricity has become an indispensable element in this sense and this has brought serious consequences. Specifically, we refer to the fact that the need we have of it to develop our day to day has meant that it must be mass produced to meet the demand that exists throughout the world. A fact that significantly damages the environment.
For this reason, a series of projects and initiatives of various kinds is currently being developed with the clear objective of using the existing natural resources to generate this electricity without damaging our environment. Thus, for example, there are panels that capture the energy of the sun to be able to operate from the light of a home to an air conditioning system.
It is known as electrical conductivity, on the other hand, to the ability of a material to enable the current of electricity to pass through its surface. The opposing faculty, which appears when the electrons are resistant to the movement of the current, is known as resistivity.
The electrical conductors, therefore, are those materials which, when in contact with a body charged with electricity, said transmitted energy to the entire surface.
