Do we see the sky as the earth, and see what our earth is mainly about

We call it the celestial sphere, but it doesn't exist.

The blue color of the sky is caused by the scattering of water vapor from the sun's radiation into the atmosphere.

The Earth is a sphere-like object, so what we're looking at is the atmosphere.

It's the atmosphere on Earth.

No!! Is the sky that the frog at the bottom of the well sees a well?

Take a look at what our planet is aboutThe astronauts began with the scene they saw when they looked at the earth from space, which led to an introduction to the earth, and then explained that the earth is facing the threat of resource depletion from the aspects of the earth's insignificance in the universe and the limited natural resources possessed by the earth that are exploited or destroyed at will without control.

The results of scientists' research prove that when the earth's resources are depleted, humans cannot move to a second suitable planet; Finally, he tells the reader that human beings should carefully protect the earth and protect the earth's ecological environment. The text uses a variety of explanatory methods, such as numerical columns and examples, to scientifically introduce the multifaceted knowledge of the earth, and to powerfully illustrate the fact that "there is only one earth".

Take a look at our Earth Author Profile.

Li Siguang founded geomechanics and made important contributions to the development of China's petroleum industry.

In the early years, he had superb research on the fossils of the Flyflies and their stratigraphic significance, put forward the existence of Quaternary glaciers in eastern China, established the concepts of "geomechanics" and "tectonic system" in the new marginal disciplines, established the concept of "tectonic system", and founded the school of geomechanics. This paper proposes the understanding of the broad prospect of oil prospecting in the three subsidence zones of the New China tectonic system, and creates a forecasting method that combines active tectonic research and in-situ stress observation.

About the Author:Li Zao Rotten Siguang (1889-1971), formerly known as Li Zhonghua, geologist, educator, ** family, social activist, academician of the Chinese Academy of Sciences, former vice president of the Chinese Academy of Sciences, minister of geology, chairman of the China Association for Science and Technology, etc., is the founder of Chinese geomechanics, one of the main leaders and founders of China's modern earth science and geological work, and was elected as one of the "100 moving Chinese characters since the founding of New China" in 2009.

The main content of "Look at Our Earth":First, the scene seen by astronauts looking at the earth from space leads to an introduction to the earth; Then, from the insignificance of the earth in the universe, the limited natural resources possessed by the earth, which are exploited or destroyed at will, it shows that the earth is facing the threat of resource depletion.

Then, with the results of scientists' research, it was proved that when the earth's resources were exhausted, human beings could not move to a second suitable planet. Finally, he tells the reader that human beings should carefully protect the earth and protect the earth's ecological environment. The text uses a variety of explanatory methods, such as numerical columns and examples, to scientifically introduce the multifaceted knowledge of the earth, and to powerfully illustrate the fact that "there is only one earth".

It refers to the universe and people sufferEarth's gravitational pullimpact, so to be active on the earth's surface. In fact, all things, whether they are celestial bodies in the universe, are attracted to each other, and if human beings do not live on earth, then there will be many inconveniences.

They go out to play, not only to enjoy the beautiful scenery, but also to feel the cultural customs of different places.

However, in ancient times, there was a saying that a year on earth is a day in heaven. Are you curious?

Nowadays, human science and technology are constantly improving, so many countries have the ability to land on the moon. For the moon, everyone must know the rotation mode of the moon, and the rotation mode of the earth inhabited by humans is different from that of the moon. Well, if you stay on the moon for twenty-four hours.

So how long is it on Earth? In this regard, netizens said: One day in the sky, one year underground, because of the tidal gravity of the earth, the moon can only rotate next to the earth all the time, just like there is an invisible rope connecting it, so we can only see half of the moon forever.

Rather, you can't see the moon in its entirety. But the Moon has its own way of rotating, and it is moving in the direction of its own movement all the time. It's just that the time it represents is different from the time it represents on Earth, so there is also a certain difference between the rise and setting of the sun in these two planets.

According to the painstaking research of astronomical scientists, our earth rotates from west to east, and a cycle is exactly 23 hours and 56 minutes, while the moon rotates.

The period is a day, which happens to be a sidereal month. This is also a very good proof that the time between the two planets is different.

"Look at Our Earth" was written by Li Siguang.

Look at Our Earth" is a popular science book on geology and geography written by Li Siguang. The book is vivid and interesting, not a rigid accumulation of knowledge, but shows its brilliance between the lines, and is both academic, interesting and readable.

Li Siguang (October 26, 1889 - April 29, 1971), known as Zhonggong, formerly known as Li Zhonghua, was a native of Huanggang, Hubei, Mongolian, geologist, educator, social activist, the founder of China's geomechanics, and one of the main leaders and founders of China's modern earth science and geological work. After the founding of the People's Republic of China, the first batch of outstanding scientific scientists and the fathers who made Zhuoshan Huiyue contributions to the development of New China were elected as one of the 100 people who moved Chinese since the founding of New China.

The main content of "Look at Our Earth":

First, the scene seen by astronauts looking at the earth from space leads to an introduction to the earth; Then, from the insignificance of the earth in the universe, the limited natural resources possessed by the earth, which are exploited or destroyed at will, it shows that the earth is facing the threat of resource depletion.

Then the results of scientists' research proved that when the earth's resources are depleted, human beings cannot move to a second suitable planet; Finally, he tells the reader that human beings should carefully protect the earth and protect the earth's ecological environment. The text uses a variety of explanatory methods, such as numerical columns and examples, to scientifically introduce the multifaceted knowledge of the earth, and to powerfully illustrate the fact that "there is only one earth".

The author of this book is Li Siguang.

Look at Our Earth" is a popular science book of geology and geography written by Li Siguang, the whole book is vivid and interesting, not a rigid accumulation of knowledge, and the words show his talent, literary and emotional, academic, interesting, and readable.

Li Siguang, whose name is Zhonggong, formerly known as Li Zhonghua, is a native of Huanggang, Hubei, Mongolian, geologist, educator, family, social activist, the founder of Chinese geomechanics, one of the main leaders and founders of China's modern earth science and geological work, the first batch of outstanding scientists and the fathers who made outstanding contributions to the development of New China.