What is Inertia (Inertia), and What Does It Mean?

What is Inertia (Inertia), and What Does It Mean?

July 2, 2021 Off By Felso

(Os. Inertia, Immobility, Silence, Eng. Inertia) The property of bodies not to change their stagnation and motion spontaneously. This physical phenomenon, which metaphysicians and idealists interpreted with an Aristotelian understanding, some out of ignorance and some intentionally, has in fact completely demolished Aristotelian physics. Aristotle thought that the natural state of bodies was rest (rest) and he thought that an external influence was required to move them (he came to the idea of ​​an unmoving primeval mover, in other words, god). Aristotle’s understanding of physics was dominant in the field of physics until the Italian physicist, the great leader Galileo Galilei (1564-1642).

Galileo understood with brilliant insight that the natural state of bodies was not stillness but motion. The motion or still appearance of the objects was born from the difference in speed. The stillness was nothing more than a zero speed movement. However, Aristotle ignored the number zero and argued that it was a quality, not a quantity. Although, there were those who opposed this understanding of Aristotle even before Galileo. For example, Philoponos of Alexandria in the 6th century said that if it was not blocked by air, an arrow shot would continue on its way. The thinkers of the 19th century called the resistance of the bodies to the change of motion inclinatio violenta. In the 14th century, Professor Buridanus of the University of Paris called this power impetus). However, in his experiments with small balls on inclined levels, Galileo was proving that a piece of rock breaking off, say, from the top of a mountain, would roll forever if it was not slowed down by frictional effects and met with an obstacle (i.e., if it was not stopped by an external force). Similarly, let’s say the table in one corner of our room could not go to the other side of the room on its own if we did not push and pull it.

It is in this sense that the stillness or serenity suggested by Galileo (It should not be forgotten that stillness or serenity is relative and expresses the state of an object only in relation to another object, for example, the table is still relative to the room, in fact both are dynamic, wear out at every moment, and collapse and dust over time. they mix with nature). Stillness or stillness consists in staying in balance at a certain speed. The law of inertia expresses the resistance of bodies to the change of motion and is usually expressed with the formula “every body stays where it is or continues its motion on a straight line unless forced by an external force” ( N. This definition of inertia is a mechanical definition; matter is only external it moves not by force but also by internal force, inner force causes displacement, it is the inner force that provides motion and displacement in celestial bodies.Also, since there is not a single object in space and objects warp space, its motion is not on a straight line, but on a curved line according to the gravitational forces that attract it. continues. N.). If the car we drive turns a corner rapidly, we hear the reality of this law in our own body. If we turn left, we fall to the right, if we turn right, we fall to the left. Because our body wants to keep moving on a straight line, when the car turns the corner (N. our body wants to go straight), it has an effect against it, while our body shows inertia resistance to this counter-effect.

First, Newton, then Einstein, drew very important conclusions from this discovery of Galileo. Inertial power has acceleration, recoil, centrifugation, etc. There are various formats such as In fact, the phenomenon that Newton called gravity is nothing but a form of inertia. For example, a man in a rapidly spinning carousel hears his body being pulled out from the center of the carousel. However, this feeling is the inertial response of the body, which wants to go on a straight line, to the effect of turning around a center. Based on these facts, Einstein showed that gravity is not the fact that objects attract each other, but the paths followed by objects over a field.