The gravitation is the act and the consequence of gravitation . In the field of physical , gravitation is the attraction of bodies according to their mass .
It can be said that gravitation or gravity It is a phenomenon of nature by which bodies with mass attract each other. It is one of the fundamental interactions that occur in the natural environment. The orbit of the Earth around the sun and the orbit of the Moon around the Earth, for example, are produced by the effect of gravitation.
The physical Albert Einstein and Isaac Newton proposed the theories more widespread on gravitation. Importantly, this natural phenomenon provides cohesion and unity to the universe.
To understand how gravitation works, you must first know how to distinguish between dough (the amount of matter that a body contains) and the weight (a force that depends on the mass of the planet where it is measured). The gravitational interaction or force of gravity is the attraction that is recorded in the bodies according to their mass.
It is known as universal gravitation law to the description of the gravitation he formulated Newton in 1687 . Newton's law establishes a quantitative relationship, which he empirically deduced through observation, between the force of attraction and the bodies With mass they attract. According Newton , said force depends on the value of the masses of the bodies that are attracted and the square of the distance that separates both.
Isaac Newton formulated the law of universal gravitation in a book he titled Philosophiae Naturalis Principia Mathematica, whose official translation into Spanish gives us Mathematical principles of natural philosophy. When the bodies are at a considerable distance, Newton points out that the force of gravity acts in a very approximate way, as if the total mass of each is found exclusively in the center , that is, as if it were two points. This assessment allowed him to considerably simplify the calculations of the interactions between any pair of objects.
The formula that summarizes the exposed so far can be seen in the second image of this document. Its interpretation is as follows: the force that can be seen between two different mass bodies located at a certain distance is equivalent to the multiplication of their masses and also inversely proportional to the distance squared. The variable F it represents the module of the force exerted by the two bodies (the module is a value that is equivalent to the length of the force vector), and its direction is in the axis that joins them; with respect to G , is the universal gravitation constant .
In the field of physics, it is known as universal gravitation constant to the value that is obtained empirically to determine the intensity with which the bodies attract. It should be noted that this variable is found in both Newton and Einstein's theory. Its origin dates from the year 1798, and its discovery is awarded to the physicist and chemist Henry Cavendish , born in France in 1731 and later nationalized English. While this constant is one of the oldest, its value is far from being accurate even today.
Beyond physics, the concept of gravitation is used to refer to the influence that something or someone exercises: "The gravitation of the Minister of Economy in the government is undeniable", "I think the presence of the Belgian striker will give another gravitation to the offense of the team", “The comments of this religious fan have no gravitation in our community”.