How to prove the existence of gravitation and why it exists

Gravitational force is impossible to detect in life because the gravitational constant is too small. But we can feel it indirectly. Why does the Moon revolve around the Earth?

Why does the Earth revolve around the Sun? What force provides the centripetal force? The plausible explanation can only be gravity.

Newton first made a bold generalization of gravitational attraction between celestial bodies - the belief that gravity exists between all objects - and deduced the law of gravitation. Later, this generalization was confirmed by experiments and observations (Earth-Moon Test, Cavendish Torsion Scale Experiment). As for how to prove that the gravitational force of an object with a large mass is large, this can only be proved by experiments and observations, and the mass of objects in life is too small.

In fact, you don't have to have to have examples from your life. Newton's first law, is there a living example? I can't even test it.

I think there is a misconception that "related to mass" should be interpreted as "the gravitational pull of A on B is a value." The mass of C is greater than that of A, so the gravitational pull of C on B is greater than that of A on B. The landlord's explanation seems to be a violation of Niu San, or the expression is unclear.

Gravitation is a very small force that is difficult to detect, and can only be verified by what is said on the first floor.

The gravitational force of relative human beings is very small, almost negligible, you stand on the earth and do not fly out, this can be explained, and those who fly out of the gravitational range of the earth, the clock will still be attracted back, can you understand?

Watch about Cavendish Shot Put Experiment! f=gmm/r'2 g is a very small amount.

Hehe, it's Ka Ask Disch's experiment! Did you know that I don't know if I want to check it out, and Eddington's starlight will be finished! Brother's oil!

The reason for the gravitational force: massive objects (such as the earth, the sun and other celestial bodies) distort space, just like a tight net put a lead ball, the net will droop downward, and the objects on the side will be attracted, including objects that move in a uniform straight line on one side, and the motion state is distorted when approaching a massive object, but in fact it still moves in a straight line at a uniform speed.

After the law of gravitation appeared, the study of the motion of celestial bodies was formally based on the theory of mechanics, thus creating celestial mechanics. To put it simply, the more massive the object is, the greater the gravitational force, which is directly proportional to the mass of both objects and inversely proportional to the square of the distance between the two objects. The gravitational pull created by the mass of the Earth is enough to hold everything on 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.

He believed that the moon was subject to the gravitational pull of the sun in addition to the gravitational pull of the earth, thus explaining the two uniform differences, business trips, etc., which had long been discovered in the movement of the moon; In addition, he explained the orbits of comets and the tidal phenomena on Earth. According to the law of gravitation, Neptune was successfully predicted and discovered.

In our lives, many people are more interested in the universe, and at the same time think that gravity exists in this world, to know that gravity does not exist, which also has a certain scientific basis, and then I will introduce it to you.

First of all, we must know that gravity does not exist, and those who say that gravity exists through their own reverie and their own assumptions have come to this conclusion, which has no scientific basis, the universe itself does not have any gravitational force, and the planet itself in the universe is spiraling, and the movement of any planetary matter will be attracted to the core of the planet. At the same time, it can also form a huge spiral attraction of the planet's core at the same time as these performances, and all the surrounding matter is attracted to the planet's core, thus generating the spiral spiral attraction of the planet. It can be seen that this gravitational force is called rotational attraction, and it is not gravitational force, and gravitational force does not exist, and there is a certain scientific consistency in life, so we should not think that the universe has gravity because of some of our narrow thoughts, which is not only unrealistic, but also proves that our knowledge is very weak.

It can be seen from this that we must improve our academic qualifications in life, if we do not improve our academic qualifications, then some questions about children will be more confused, and at the same time do not know how to children, so whether we are young or old, we must read more books in life, watch more news, read more academic books, which can not only improve our knowledge, but also help us solve some problems.

Finally, in the process of learning, we will inevitably encounter some problems, at this time we must dare to ask, do not be shy, to know that learning, is originally in the process of inquiry.

First of all, we must know that gravity does not exist, and those who say that gravity exists through their own reverie and their own assumptions have come to this conclusion, which has no scientific basis, the universe itself does not have any gravitational force, and the planet itself in the universe is spiraling, and the movement of any planetary matter will be attracted to the core of the planet. At the same time, it can also form a huge spiral attraction of the planet's core at the same time as these performances, and all the surrounding matter is attracted to the planet's core, thus generating the spiral spiral attraction of the planet. It can be seen that this gravitational force is called rotational attraction, and it is not gravitational force, and gravitational force does not exist, and there is a certain scientific consistency in life, so we should not think that the universe has gravity because of some of our narrow thoughts, which is not only unrealistic, but also proves that our knowledge is very weak.

Gravitation exists objectively and has been verified by science and the facts of life, so the idea that gravitation does not exist is contrary to science and has no scientific basis.

It was discovered by the English scientist Isaac Newton in 1687, and legend has it that Newton was sitting under an apple tree when he was suddenly hit on the head by an apple, which led him to discover the law of universal gravitation.

Gravitation is a great invention that has been used in many scientific fields, but who invented it? Let's get to know the inventor of gravity.

01 There is a mutual attraction between any object, and the magnitude of this force is directly proportional to the mass of each object and inversely proportional to the square of the distance between them. If m1 and m2 are used to denote the masses of two objects, and r denotes the distance between them, then the mutual attraction between objects is f=(gm1m2) r, and g is called the gravitational constant, which can also be referred to as the gravitational constant.

02 Before the rise of human spaceflight, gravitational force had long been applied to the study of cosmic celestial bodies. Although gravity has been discovered early, the study of gravity has entered the field of space, led by aerospace science. On the way to space from the ground, the gravitational force of an object changes dramatically.

After reaching the target or man-made celestial body, the gravitational force of the object will also be very different from that on Earth.

03 By the early 17th century, people were able to distinguish between many forces, such as friction, gravity, air resistance, electricity, and manpower. For the first time, Newton accurately attributed some of these seemingly disparate forces to the concept of gravitation: an apple falls to the ground, a man has weight, the moon revolves around the earth, all of which are caused by the same cause.

Newton's law of gravitation is simple and easy to understand, and covers a wide range of areas.

04 The discovery of gravity was one of the greatest achievements of natural science in the 17th century. It unifies the law of the motion of objects on the ground and the law of the motion of celestial bodies, and has a profound impact on the development of physics and astronomy in the future. It revealed for the first time a fundamental law of interaction in nature, and set a milestone in the history of human understanding of nature.

05 Newton's concept of gravitation is one of the most practical concepts in all of science. Newton's belief that gravity is a fundamental feature of all matter became the theoretical cornerstone of most physical sciences.