Physics and its 4 fundamental forces

Physics is one of the pillars of science. Human knowledge has been developing for years thanks to the discoveries and experience of physics that make us understand the world in which we live much better. Within this matter, formerly the four fundamental forces of nature were related to the classical elements: fire, earth, water and air.With experimentation and scientific work, these four elements were displaced by other four elements as the fundamental forces physics that are popularly accepted by the entire scientific community today. Force of Gravity The force of gravity was clarified by Albert Einstein when he described his theory of relativity. In essence, this force of gravity is defined as the force that occurs so that two elements attract each other. There is an approach between the two masses without any rejection. This force is the one that keeps, for example, the planets orbiting and rotating around the Sun, or the one that keeps the Moon orbiting around the Earth. When these forces were first discovered, mechanics and electricity were considered separate forces. It was the Scottish scientist, James Clerck Maxwell who demonstrated, through his Maxwell equation, that both forces must go together.This force says that a reaction takes place when two electronically charged particles join together. There are particles of different charges (positive / negative) and particles of repulsive force, formed by the same charge (positive / positive). Weak nuclear force It is one of the four fundamental forces by which we could not enjoy the Sun if did not exist.It is known as weak nuclear or weak interaction, since it is a weak force compared to others. It acts at the level of atomic nuclei and is what allows hydrogen fusion. Without this fusion we would not be able to enjoy sunlight.Strong nuclear force Unlike the weak nuclear force, this is the strongest of all the forces in physics. With this reaction it is possible to unite protons with neutrons, despite the repulsive force that exists between them. It is a short-range force, since if it had more, these nuclei would unite into one. The theory was proposed through quantum chromodynamics (QCD) proposed by scientists by David Politzer, Frank Wilczek, and David Gross in the 1980s.