How the gravitational pull of the earth is formed

In short, the rotation (rotation and revolution) of the earth

The law of gravitation was first proposed by Newton in his book The Mathematical Principles of Natural Philosophy, published in 1687. Newton used the law of gravitation to explain not only the laws of planetary motion, but also pointed out that the moons of Jupiter and Saturn orbit the planets in the same way.

Gravity is caused by the gravitational pull of the earth on objects near the ground. However, it should be noted that because the earth is rotating, the gravity of an object at any point on the earth is not equal to the gravitational force except at the north and south pole points of the south pole. At this point, it can be seen as the centripetal force and gravity around the earth to form a gravitational force.

Since the centripetal force of rotation around the earth is much less than gravity, it is generally believed that gravity is slightly equal to gravitational force, in fact, gravity is slightly less than gravitational force, and only when the centripetal force of the rotation of the North and South pole objects around the earth is zero, gravity is equal to gravitational force.

The law of gravitation has gained widespread application, but how two objects are attracted to each other has always been a mystery in the physics community. Hypotheses such as graviton, universal repulsion, and subphoton ocean are all flawed and do not satisfactorily explain the ** of gravity. Suppose (1) there are microparticles in space that move at a certain speed and are similar to the thermal motion of molecules; (2) the object is discontinuous in its microstructure, and there are gaps between the particles that make up the object, which allow some of the particles to pass through; (3) The momentum transferred by the particles to the object is proportional to the mass of the object.

Not only does the Earth have an attraction to the objects around it, but there is also such an attraction between any two objects. This attraction between objects is universal between all things in the universe, so it is called gravitational force.

Gravitation is an interaction between objects due to the mass they have. Its size is related to the mass of the object and the distance between two objects. The greater the mass of the object, the greater the gravitational pull between them; The greater the distance between the objects, the less gravitational force between them.

Usually the gravitational force between two objects is so small that it is difficult to detect it and can be disregarded. For example, if two people with a mass of 60 kilograms are meters apart, the gravitational force between them is less than that of Newton, and the force of an ant dragging a thin grass stalk is 100 times that of this gravitational force.

However, in the celestial system, gravitational attraction plays a decisive role due to the large mass of the celestial body. The nine planets in the solar system revolve around the sun without leaving because of the gravitational force. The globular clusters in the Milky Way – clusters of spherical stars clustered together by millions of stars – are also due to gravitational pull.

The Earth, which is still relatively small in the mass of celestial bodies, already has a great influence on the gravitational pull of other objects, it binds humans, the atmosphere and all objects on the ground to the Earth, and it also makes the Moon and artificial Earth satellites revolve around the Earth without leaving. Gravity is the result of the gravitational pull of the earth on objects near the ground.

About 300 years ago, Newton synthesized the astronomical and mechanical achievements of the time to discover the law of universal gravitation, revealing a fundamental interaction force in nature.

In fact, gravity does not exist. Or that gravity is just an explanation for this phenomenon. It is different from other forces.

"Gravity" is actually a manifestation of the distortion of space-time, to give a two-dimensional example: a net of straightened rubber bands.

1.Put two balls of different masses and the same volume, and the net twists.

2.On the basis of 1, let a ball move in a straight line at a uniform speed on the rubber band net, and the closer the distance between the straight line and the (same) ball, the larger the trajectory bend area.

3.On the basis of 2, let a ball move in a uniform straight line on the rubber band net to approach two balls of unequal mass, the distance between the straight line and the two balls is the same, and the ball with large mass passes through the trajectory bend area.

The phenomena illustrated by 2 and 3 are similar to gravity, and there are also cases where the mass and distance are larger, and the gravitational force is greater.

An object moves in a straight line due to inertia, but moves in distorted space, and is affected by gravity.

In fact, gravity distorts four-dimensional space-time.

Another example: light distorts when it passes through massive objects, but gravity cannot act on light, so the explanation is that light travels in a straight line and moves in distorted space-time. But the light still travels in a straight line.

Since Newton proposed the theory of "universal gravitation", people have been thinking that gravity comes from the object itself, but this view is wrong, and the gravitational force produced by one object on another object is the weak energy zone between the two objects while the two objects each consume the energy of the universe, thus creating gravity.

How do weak energy zones come about? As we mentioned earlier, when a positive energy cell hits the wish core, the life span of this positive energy on ends up, so all the matter in the entire inner universe is consuming the energy of the inner universe.

When a high density of energies passes through an object, they inevitably consume a portion of the energizers. Then the density of the positive energy on penetrating an object is higher than the density of penetration. Then the penetration surface forms a weak energy zone.

Let's take an example like this, if we take a piece of tinted glass and put it in the sun, then the intensity of light under the glass is not as great as that on the glass. Below, a low-light area is formed. Why?

Because a ray of light is consumed by tinted glass, the same is true when the positive energy is passed through an object. Some of the energists are consumed by the nucleus, and there are not as many energs as they do when they pass through the object, which forms a weak energy region on the penetrating surface. Because the positive eneron comes from all directions, there are weak energy regions on either side of the object, and the weak energy region is the gravitational region.

If you still don't understand, let me give you an example, for example: A and B stand facing each other. 10 billion positive energs are pierced from the back of person A (assuming that the impact force of 10 billion positive enerns is equal to 100 Newtons), then there are only 9 billion positive energs when piercing the body of person A, that is to say, the positive energs of person A from this direction consume 1 billion, then the remaining 9 billion positive energs impact Person B from the front, and Person B still has 10 billion positive enertons from his back, that is to say, there is a force of 100 Newtons pushing B forward from the back, and the front of B has a force of 90 Newtons pushing back B. Then these two forces are subtracted, B has a force of 10 Newtons to A, and in the same way, A also has a force of 10 Newtons to B (assuming that A and B are equal in weight), and this 10 Newtons of force is gravitational force, which is the gravitational phenomenon that I want to explain.

Not exactly.

The gravitational force should be deducted from the centripetal force required to follow the rotation of the earth, and what remains is gravity.

Categories: Science & Engineering.

Analysis: Gravitational force.

The mutual attraction between objects due to their mass. This force exists between all things on earth. The attraction of the earth to an object on the ground is the gravitational attraction.

On the basis of Kepler's law and the law of free fall, Newton discovered after a long period of research that there is a mutual gravitational force between any two objects in nature, which is called gravitational force. In 1687 Newton published the law of universal gravitation:

In nature, any two particles are attracted to each other by a certain force, which is directly proportional to the mass product m1·m2 of the two particles and inversely proportional to the square of the distance r between them. Namely.

where g is the gravitational constant, g = Newton·m2 kg2, which is equal to the interaction force when two particles with mass of 1 kg are 1 m apart. The direction of gravitational attraction is along the line connecting the two points. The law of gravitation only applies to particles, i.e., the law of gravitation is only true when the size of two objects that attract each other is very small compared to the distance between them.

If such a condition is not satisfied, the two objects must be divided into many volumetric elements that can be regarded as particles, the above equation must be applied to each pair of volumetric elements, and then the gravitational force between the two objects must be obtained by the force synthesis method. When calculating the gravitational force between two homogeneous spheres; It can be directly calculated using the above equation, where r is the distance between the two spheres. The gravitational force between objects is small and negligible.

But for massive objects, the gravitational pull is great. For example, the force of attraction between the Earth and the Sun is about Newton, and if such a force acts on the ends of a steel column with a diameter of 9,000 kilometers, it can be pulled apart. The discovery of the law of gravitation laid the foundation for celestial mechanics and revealed the basic laws of celestial motion.

Thus explaining a large number of terrestrial and celestial phenomena, such as Halley's Comet and the flattening of the Earth. ** The discovery of Neptune, Pluto, etc. It is also the basis of astronautical calculations.

We don't know because they are still a mystery to humans. However, it is considered unlikely. Because according to scientists' current research, dark energy and dark matter provide a repulsive force that not only resists the attraction of all matter in the universe, but is even strong enough to make the universe expand.

But dark energy and dark matter are not the only things in the universe. There may be many areas that we don't know about. In different fields, there will be different particles.

There may be a type of particle that interacts with different particles, creating a gravitational effect.

<> other scientists believe that perhaps the electrons inside the atom spin in different directions, opposites attracting, causing gravity. Gravitational Force: The force by which all objects attract each other.

This force exerted by the Earth on other objects is known as gravity. The direction of gravity of other objects is towards the center of the earth. This is caused by the rotation of the Earth.

The rotation of the earth produces a force called geostrophic deflection.

In the Northern Hemisphere, it moves objects to the right; In the Southern Hemisphere, it moves the object to the left. So, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. According to Newton's law of gravitation, there is an attractive force between any two masses of matter.

It is said that once, Newton went to play in the country, and after resting against an apple tree, suddenly, an apple fell from the tree. He wondered why the apple fell from above and not rose from the bottom. With this in mind, he went home to study it, and later proved that the earth has a gravitational pull that can bring objects together.

Then there's Newton's gravitational physics.

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It can only be said that gravity is a necessary condition for the formation of matter, and what are the external conditions that constitute the formation of gravitational matter, which is the answer to the so-called gravitational force, whether the elementary particles have gravity, or the atoms have gravity, gravity is a vague word without positioning, such as the earth and the moon and the sun, who attracts whom, how can the matter launched by human beings into the sky have no gravitational effect? The earth has a gravitational pull, which should have been discovered by earthlings.

Gravitation was discovered by Newton. Newton was sitting under an apple tree and an apple hit him on the head, and he discovered gravity.

It was discovered by Newton, who discovered gravity when she was hit by an apple under an apple tree. This is what I said in a textbook when I was a child.

Gravity was discovered by Newton, who was sitting under an apple tree one day, and an apple fell and fell on Newton's head, triggering Newton's thoughts.

It is more profound, and there are different explanations in the scientific community. 【First Explanation】 Space Gravity distorts space, which can also be said to be distorted by expansion. 【Second Explanation】 Gravitational Force** Bending It is mass that causes the bending of space, and motion is carried out along the curved space, which makes people "think" that they are governed by some kind of gravitational force.

It's not gravity, it's actually a curved space. This is how "gravity" arises.

The third explanation] Einstein believed that gravity is caused by the existence of matter that bends space-time. The theory of space-time bending is unique and puzzling, how does the existence of matter cause space-time to bend? And how does gravity occur?

Gravitational force comes from **, how does it interact? became a mystery of nature.

As long as there is the earth, there is gravity, and there must be a gravitational force on one object against another, and there is a force that attracts each other between any two objects. There is a constant g that is a very small number, and the relevant content of gravity will be learned in high school physics.