Newton was the one who discovered the existence of gravity, how did he discover it?

Newton discovered the law of gravitation, the law of gravitation seems to mean that the universe is in the action of the law of gravitation, but my analysis of the law of gravitation refers to the gravitational force between two distances of an object, and the gravitational force decreases with the elongation of the distance, but Newton did not make the scope of gravity, so I use the modern mathematical point of view, <>

Using the limit principle, the law of gravitation is divided into a number of poles, and the range of gravitational force is solved, the law of gravitation: f=gmm r 2It can be a series of 1, 2, 3 ......n substitution rf = gmm 1 2

f=gmm/2^2……f=gmm n 2 xm=0x is the correction factor.

Newton discovered the law of gravitation, just like someone discovered the mechanics of beams and columns, thinking that beams and columns are infinitely extended, and did not realize that houses have boundaries, so he did not establish a complete structural mechanics of houses.

Today I want to share my thoughts on the law of gravitation. In our lives, we all live in houses, and if we don't have a house, we live directly on the earth, and when the storm comes, it acts directly on the human body, and people can only survive by hiding in caves. In order to survive on the earth, people began to build houses to withstand the wind and rain, and people's survival needs multiple levels of protection, first of all, clothing, if there is no winter clothes to keep warm, daysIt's sad.

In addition to the protection of clothes, people also need the protection of the house, and the construction of a house requires the knowledge of mechanics, I learned in the study of house structural mechanics that structural mechanics is based on a house as a system, if there is another house nearby, structural mechanics is not passable. Newton's observation of the law of gravitation was observed on the earth, and if there was a house with a calendar range as the outer wall, then Newton observed it in the house, and only observed the mechanical principles of beams and columns

I don't understand the mechanics of the whole house. If human survival is first protected by clothing, the outer layer plus the protection of the house, there is also a second outer layer like a house. There is a house in the range of the calendar.

Newton's law of gravitation is the mechanical part of the beams and columns in the structural mechanics of the house, and the gravitational force is determinedThe law is not connected to the universe. We lived inside the house and there was a storm outside the house, thunder and lightning, <>

Because the exterior walls of the house resist the wind, frost, snow and rain from the outside world, we feel safe to live in the house. Now I hear gravitational waves, the universe, black holes, etc., which seem to have a direct connection with the earth, directly acting on the human body, the earth seems to have no sense of security, although Newton discovered the law of gravitation, but did not make the gravitational range of our earth and the planet, that is to say, living in a house, but not seeing the outer wall of the house. The façade protects the house, and what happens outside the façade has nothing to do with the people who live in the house.

Newton was the one who discovered the existence of gravity, which he discovered after being smashed by an apple under an apple tree.

He was smashed out by an apple, that is, he found small details in life.

One day while playing under a tree, I saw an apple that had fallen on the ground, and after intensive research, I discovered gravity.

Newton discovered it while sleeping under an apple tree and was very intelligent.

He is a slow experiment of understanding that he finds out from life experience.

Because of a small apple on a tree, the apple smashed into the person reading under the tree.

I found it inadvertently in life, and then slowly studied it.

When I was a child, I was playing under a tree, and I found it when an apple fell, and I researched it.

One day, while playing under a tree, I saw an apple that had fallen on the ground, and through my inner research, I found that gravity was discovered step by step.

1: When the physicist Newton saw that the apple was ripe when he was a child, he was very curious when it fell down, and he thought, why did the east and west of the earth fall to the ground after losing support, and not fall in other directions? Later, he finally discovered the law of gravitation.

2: Edison was interested in everything as a child. I always want to try things I don't know about and figure it out.

Once he saw a wild honeycomb on the edge of the fence in the garden, and felt very strange, so he used a stick to pluck it, and tried to see what it was, but his face was stung and swollen by the wild bee, but he was still unwilling to see the structure of the honeycomb clearly. Edison later became a world-famous inventor.

3: Watt looks at the kettle and studies the steam. It has made a great contribution to the economic development of Europe.

Others: the great animal behaviorist Goodall once said: The stuffy chicken coop is often intertwined with the memories of our childhood. When I was a child, I used to go into the hen's coop for five hours to see how the hens lay their eggs.

When Li Siguang, a great geologist in China, was a child, he often relied on some stones of unknown origin in his hometown to make surprising reveries, and asked himself curiously, why do these lonely boulders appear here? What kind of power did they use to get here? Later, Li Siguang traveled all over China's mountains and rivers, did a lot of investigation and research, and finally concluded that these strange rocks were the floating gravel of glaciers, and they were the remains of Quaternary glaciers.

It corrects the erroneous theory of foreign scholars that there are no Quaternary glaciers in China. ）

Here are two more negative examples:

1: Jolio Curie bombarded the elemental beryllium with particles and discovered a very strong ray. He didn't dig deeper, thinking it was just an ordinary ray, and thus missed the discovery of the neutron (which was later discovered by Chadwick).

2: Liebig once extracted iodine from seaweed, and in the extracted mother liquor, a layer of dark brown and pungent smell was deposited, Liebig did not pay attention to this strange phenomenon, and thus missed the discovery of bromine (later discovered by the French scientist Pollard).

Newton discovered gravity because he was sitting in his sister's orchard and suddenly an apple fell to the ground, and he began to think about the pull of propulsion and gravity. Finally, Newton used the inverse square law of gravitational force and the three laws of motion, especially from the second law of motion, which can be derived from the gravitational force and the mass of the interacting object and its product into a hail proportion, and finally in 1685, Newton discovered the law of universal gravitation.

Newton's gravitational attraction shows that each object attracts every other object, and that the gravitational force between two objects, proportional to their mass, decreases with the square of the distance between the two objects from the center line.

The story of Newton's gravitational pull

One day, sitting in his sister's orchard, Newton pondered, and he would think: Why didn't the moon fall on Earth? And what is the force that makes the moon revolve around the earth?

Thinking about it, he suddenly dropped an apple from the tree and ** it hit the ground. At this time, Newton began to wonder if there was something in common between apples and the earth.

The next day Newton saw his nephew playing with a rubber band, and he saw that his nephew had a rubber band tied to his hand, and the other end of the rubber band was tied with a small ball. He swung the ball slowly, then faster and faster, and finally the ball was thrown straight away. Newton suddenly discovered that the trajectory of the ball is the same as that of the moon, which is the pull of the driving force and gravity, which causes the moon to move, and it is also because of the existence of gravity in the world that the apple will fall to the ground.

After a series of studies, Newton believed for the first time that gravity was a universal attraction, not just a force between planets and stars.

Between 1665 and 1667, Newton was already thinking about gravity. One evening, while he was sitting under an apple tree in the shade, an apple fell from the tree. He suddenly thought:

Why do apples only fall to the ground and not to the sky? He analyzed Copernicus's heliocentrism and Kepler's three laws, and then wondered: Why do the planets revolve around the sun without detaching?

Why do planets move faster when they're closer to the Sun and slower when they're farther away? Why does the farther a planet is from the Sun, the longer it runs? Newton believed that the fundamental reason for them was that they were so great and incomparably attractive.

After a series of experiments, observations, and calculations, Newton discovered that the gravitational pull of the sun is closely related to its massive mass. Newton went on to reveal the universal laws of the universe: everything is attractive; The greater the quality, the greater the attraction; The greater the spacing, the less attractive it is.

This is the famous "law of gravitation" in classical mechanics

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Newton's story, about 100 words.

For a long time, Newton believed that there must be a mysterious force that pulls the planets in the solar system around the sun. But what kind of force is this? Until one day, when Newton was thinking under an apple tree in the garden, and an apple fell at his feet, Newton finally had an epiphany, and his problem was gradually solved.

Legend has it that in the autumn of 1665, Newton sat under an apple tree in his yard and pondered the cause of the planets' orbits. At this moment, an apple happened to fall, and it landed at Newton's feet. It was a moment of discovery, and this time the apple's whereabouts were different from countless previous apple drops, and the country caught Newton's attention for it.

Newton found the reason for the fall of the apple from the natural phenomenon of the apple falling to the ground - the effect of gravity. This invisible force from the earth pulls the apple down, just like.

Newton sat under the apple tree when the apple fell on his head. Newton was inspired to discover the law of gravitation. This is a story that children of several years old know, and almost all of them describe Newton's discovery of the law of gravitation.

However, according to Hong Kong's "Ta Kung Pao" 20**, according to a manuscript recently published by the Royal Society, the bridge of Newton being hit by an apple seems to be a legend made up by later generations.