How can the earth, which weighs 60 trillion tons, be suspended in the universe? Are there other powers?
The earth is the home of human existence. After continuous evolution, the topography will change more or less, but what we can see is the surface of the earth. What is the interior of the earth like? Maybe we didn't know it before, but with the continuous progress of the times, this problem can be solved by high-tech instruments. This problem requires the continuous exploration of geologists and the continuous archaeology of archaeologists.
The earth was created about 4.6 billion years ago, and the evolution of the earth has gone through many stages. The first is the formation period of the earth. At that time, the earth was very different from the current one, and the species was very rich. At that time, the earth was still in its most primitive state and was not destroyed by human beings. Human beings in primitive society respected nature and respected the laws of nature. , pay attention to protecting the ecological balance, the earth has many natural species, and everything is beautiful.
- The internal organs of the earth
With the passage of time, human beings have continued to evolve, from the initial barbaric lifestyle to the current refined operation. With the change of human life style, people started industrial exploration, and the damage to the earth has become more and more serious. Human beings have become curious about the earth and want to know how the earth was formed and the secrets of the earth's interior . So there are scientists and inventors, geologists, who use the various high-tech instruments they have invented to explore the earth.
According to the research of scientists, the earth is a ball composed of rocks, water, and atmosphere, and humans call it the earth. In the Middle Ages, the earth continuously released energy outwards, and the inside continued to eject gases such as water vapor and carbon dioxide outwards, forming a thin atmosphere. Due to physical operations and wind erosion, the material inside the earth is also exposed on the ground, and all kinds of cosmic materials fall on the ground, and the stone continues to grow larger and becomes the earth.
Slowly, the water vapor in the air continues to increase. When encountering the cold air at high altitude, the water vapor condenses into small water droplets, and then gathers into rainwater and falls to the ground, forming rain, rivers and oceans. Of course some of the water vapor also stayed in the air and turned into fog. With the continuous prosperity of organisms, the surface of the earth is constantly evolving , the topography is rich and colorful, and the earth is very large, resulting in different types of organisms around the world.
The earth is divided into several circles , and each circle contains different substances, which are used by human beings in various places to make energy and as materials for other chemicals. And the continuous accumulation of waste on the surface, all kinds of gravel and sand are piled together and transported under the action of wind, running water, physics and chemistry, forming the ground. The surface of each surface is uneven, forming different landforms.
There are different substances in these rocks. Different vegetation, climate and water quality in different regions have nurtured different species. They are constantly evolving. In millions of years, the earth is also changing, but the only thing that will not change It is the internal structure of the earth. Because the earth is very large and the ground is very deep, the ability of human beings can only be in the shallowest layer and cannot go deep. Moreover, the oxygen in the earth is so thin that humans cannot survive. Therefore, for so many years, we have never been able to know the earth . Inside secrets.
From birth to death, we all live on Earth, and what we see with our eyes, our common sense and intuition learned from life are limited to the surface of the earth . So what can we feel on earth? What can we see? We only know that the sky above our head and the ground below our feet. We can only see flowers, trees, rain, fog, birds and beasts. What we see is that everything will fall, which is called falling.
Why we can always be on the ground instead of floating in the air, this is to talk about Newton's law of universal gravitation. Newton was sleeping under a tree and was smashed by an apple, so he discovered gravitation. Before there was no gravitation, we never thought about why humans were born on the ground. Nothing is known about this .
Why we can always be on the ground instead of floating in the air, this is to talk about Newton's law of universal gravitation. Newton was sleeping under a tree and was smashed by an apple, so he discovered gravitation. Before there was no gravitation, we never thought about why humans were born on the ground. Nothing is known about this .
The weight of the earth
The earth has a history of 4.6 billion years, and we humans have only existed for a few million years. Human beings in front of the earth are still very small. With the continuous development of human civilization, various machines have been created, and we know that there are other galaxies besides the earth. Our earth is in the solar system, so why is the earth floating in the solar system all the time? Don't fall down?
First we need to know how much the earth actually weighs. Because any object has weight, the earth, as an object that carries the sea, continents and all living things, must also have weight, so what is the weight of the earth ? With the help of gravitation, scientists rely on collected data to calculate the mass of the earth. According to calculations, the mass of the earth is about 60 trillion gigatons .
We would say, why is the earth so heavy and not falling? In fact, it is because the trajectory of the galaxies in outer space makes the earth revolve around the sun. If the earth does not revolve , then the earth will definitely have no direction, slam into the sun, and finally be burned by the heat of the sun. Of course, there is also the effect of centripetal force. Under the influence of centripetal force, the earth will not fall, and the same is true of other galaxies.