Does gravity take time and medium to propagate? 20

Gravity is not something that is generated, but something that is always present.

For example, light, it is generated, it is the embodiment of energy, and the photon itself has energy. A photon is the energy diffracted by the electron transitions in the nucleus of an atom, which has no mass but has energy.

Whereas, gravity is different, everything has a gravitational pull, as long as there is mass, everything has a gravitational pull on other objects.

So gravity has existed since the universe, it does not propagate by any medium, and it cannot use the word propagation at all. If you punch the wall, is the force spreading? No, force is not a physical quantity that can propagate.

Force is also not a physical quantity produced, it is a medium through which energy is converted into another. It's like when you ask why there is only one proton, it has no reason, its very existence is a reason. If there is only one proton, it is not h (isotopes are not counted).

So, don't contradict yourself, the source of your contradiction is not correct.

If there's anything you don't understand or a new idea, just say it.,I'll try my best to tell you.。。

Hope it helps.

Gravity is formed by a field, for example, gravity, people on Earth, in the gravitational field of the Earth, so they receive the action of gravity, you don't need to propagate what you say, you are talking about displacement, displacement per unit of time is velocity. It has nothing to do with force.

There is a gravitational force on the earth that people stand on, but the earth is also supportive of people is balanced.

The reason for the gravitational force is the force experienced by the object in the gravitational field. The gravitational field is a special substance that cannot be seen or touched, but it does exist. Such as gravitational fields, magnetic fields, and so on.

The field is a basic form of physical existence. The main feature of this form is that the field is diffuse throughout the space. The physical properties of a field can be described in terms of quantities defined in space, for example, the properties of an electromagnetic field can be described in terms of the strength of the electric field and the strength of the magnetic field, or by a three-dimensional vector potential a(x,t) and a scalar potential (x,t).

So it has nothing to do with time and medium, the field itself is a substance, so it does not need a medium for the generation of its field force. I learned physics in the third year of high school.

The gravitational force is directly proportional to the mass and inversely proportional to the square of the distance. The generation of gravity is linked to the generation of mass, which is the intrinsic property of matter, an effect produced by the change of space, and the emergence of gravity attached to the creation of mass.

Gravitational force and time, the medium is not at all related.

No media is required.

Gravitational attraction is produced due to the curvature of space, and the distortion of space causes objects to always move in space along the shortest distance, which creates gravity.

Fundamental Forces All the transformation processes between elementary particles are realized through certain interactions, and there are four main interactions that are known to cause elementary particle reactions: strong interactions, electromagnetic interactions, weak interactions, and gravitational interactions. Gravitational interactions tend to be ignored because they are very weak and have little effect on elementary particle interactions.

The relative strengths, force ranges, and characteristic times of these four interactions vary greatly, as do the particles that transmit their forces.

Let me make a list :

Name Strong Force Electromagnetic Action Weak Action Gravitational Action.

Relative strength 1 10 -2 10 -12 10 -39

Force range m 10 -15 infinity 10 -17 infinity.

Particles that are acted on Hadrons, Hadrons, Leptons, Hadrons, Leptons, Leptons, and all objects.

The particles that transmit the force of gluons, photons, intermediate bosons, gravitons.

Examples of nuclear forces are the combination of atomic decay between celestial bodies.

Explain: I've worked so hard to make this table, so I'll give you my answer.

As can be seen from the above table: the transfer of force requires particles to transmit, and the gravitational force that the landlord wants to know is transmitted by gravitons, and the timetable of the action is not said, it may not have been detected.

I don't know if the landlord can see it clearly, so let's clarify, 10 -2 means 10 to the minus 2 power.

There is no need for time, no need for medium, just imagine, if the sun suddenly disappeared now, would the gravitational force between it and the earth suddenly disappear or after some time? The answer is obvious, but all the cases here are carried out under the assumptions of Newton's classical mechanics! On the other hand, under quantum gravity, the gravitational field is represented by curved space-time, where particles attempt to move along the closest thing to a straight line in curved space, but because space-time is not flat, their paths appear as if they are bent by the gravitational field!

Here we can apply Feynman's summation of history to Einstein's view of gravity, where the analogue of particle history is now the complete curved space-time that represents the entire history of the universe.

Gravitational attraction is a field formed by massive objects in space, and objects entering this field are subjected to gravitational pull.

A medium is needed for force to propagate, because if there is no force transfer between particles, the force cannot really propagate, even if it is an absolutely rigid objectIt must also be that the particle conditions are fixed, and the interval between them does not change, and then there is no separation of force under the impetus of the force. <>

In the way people use force, they are more likely to seek the help of rigid objects, because the more rigid the medium of propagating force tends to be, the easier it is for people to express their strength, such as giving you a needle now, you go to puncture a balloon, which is very simple, but if you don't give you this body, let you fan this Li with your own hands, how much force do you need to blow up this balloon? It's impossible, you can't blow it up, because how much force you have is broken down by the natural air, and it's not an ideal medium for the propagation of force. <>

I have encountered a question before, asking whether it takes time for the propagation of force, theoretically speaking, the propagation of the force of an absolutely rigid object does not need time, but from a microscopic point of view, there is no absolute rigidity of the object in this world, because even if it is relatively hard steel, in the process of Shi Jia's strength, it will also occur in the micro-terrain, it may not be seen by your naked eye, but it does not mean that it has not happened, as long as there is this type of convenient propagation it takes timeThen the medium required for the propagation of force depends more on the rigidity of the medium itself, the stronger the rigidity, the easier it is to propagate the force, and the less the force will be dispersed. <>

Why did people make so many sharp weapons in ancient times? Because these weapons can help people better concentrate their forces, such as a big knife, if you sharpen this blade quickly, you will go out, these forces are basically concentrated on these blades, he will become very sharp, very lethal, but if you are given a very thick wooden stick,The lethality that can be caused is completely different from the lethality caused by a knife, and the same force causes different results, which is the effect caused by the propagation of the media.

The propagation of force requires a medium. The gravitational force propagates by the gravitational field. A "field" is a substance, such as a magnetic field, a gravitational field, an electric field, etc., which cannot be seen or touched, but it does exist.

The propagation of force requires a medium, and the gravitational force in the universe is propagated by a force field, because without this field of propagating force, force cannot propagate.

The propagation of force requires a medium, and the gravitational force in the universe relies on a medium called a "graviton" to propagate.

When it comes to gravity, we must mention the substance of "graviton", because the substance of "graviton" is a special existence for gravitation. <

Gravity is the weakest of the four forces. Don't take it for granted that the weakest force is the most useless force, and if you think so, you are very wrong. Scientists have found that all kinds of phenomena that occur in the world are inseparable from the four basic forces, each of these four forces is important, there is no such thing as who is strong and who is weak, there is no distinction between high and low, each force has its own unique range, but no one can, the world will become unimaginable.

Therefore, these four basic forces are the most basic forces that maintain the world and the earth, and they are all very important, and there is no question of who is strong and who is weak. <>

Gravitational force: As the name suggests, it is the gravitational force that we often talk about in life, and his full name is: gravitational interaction force.

We think gravity is important because among the four forces, gravity was the first to be discovered and studied by human beings, and it is mainly displayed in the macroscopic aspect and the microscopic aspect is very little, almost nothing. Gravitational force is present all the time around us, and it is also called long-range force. The most intuitive manifestation is the celestial bodies and planets in the sky that we rely on, and it just so happens that the movement of celestial bodies seems to be very mysterious <>

In fact, the fundamental explanation of gravitational force is a disturbance behavior of matter in space-time, which has a very clear explanation in Einstein's general theory of relativity, although the range of space-time disturbance will be far and wide, but when each matter is a gravitational source alone, his effect distance is not infinite, and there is a certain distance limit.

The entire universe is in a gravitational sphere, and gravity has evolved into a larger celestial structure, and gravity also maintains the balance of the Earth's orbit.

Force is an interaction between objects, and unlike sound and light, it does not need to propagate as it is a definition. The generation of gravitational force, according to Einstein's theory, is due to the gravitational field in space-time caused by the mass of the object, so that the gravitational force between objects is generated.

No medium is required for the propagation of force. The propagation of gravitational force in the universe depends on gravitons, but this is only theoretical, and gravitons have not really been discovered.

The gravitational force in the universe relies on a medium called the "graviton" for propagation, because the "graviton" is a relatively special existence of the gravitational force.

The propagation of force requires a medium. If there is no transfer of force between the particles, the force cannot really be propagated. The gravitational force in the universe is propagated by gravitons.

The propagation of force requires a medium, and the propagation of gravitational force depends on gravitons.

According to Einstein's theory of relativity, the existence of an object with mass will have an impact on space-time. Compress space-time into a depression, and the entire depression area is within the gravitational range.

The propagation of force requires a medium, whereas the propagation of gravitational force requires a gravitational field (a medium), which is manifested only when two or more substances located in the same gravitational field interact.

The propagation of force requires a medium, and gravity in the universe relies on a medium called a "graviton" to propagate.

Gravitational propagation takes time and is credited if the distance is very long. If the distance is close, it is not remembered.

It is actually needed, but in most cases, the propagation speed of gravity is negligible, so when the position of the gravitational source changes, the change of the gravitational field propagates outward at the speed of light, and this propagation is gravitational waves.

Since the gravitational field propagates at the speed of light, the view of the gravitational source is precisely synchronized with the position shown by the gravitational force.

All mechanical waves cannot propagate in a vacuum and must depend on the medium, while all field waves can propagate in a vacuum, and in addition to electromagnetic waves, there are gravitational waves.