What would the earth be like without the moon?

We may be the second generation dinosaurs.

As we know, the surface of the moon is full of potholes, many of which are craters formed by frequent impacts of meteors. Some of these meteors were originally directed at the earth. If the moon does not act as a shield, meteors will collide with the earth, and many of them will be devastating disasters to the earth.

65 million years ago, a meteorite impact led to the extinction of the last generation of dominant dinosaurs on earth. If there were no moon, I don't know how many times the world would turn its fate.

There may not be a human being on the earth: evolution is short of water.

Life originated from the ocean, because the ocean is more suitable for life, and it is a very dangerous and difficult transition for organisms to migrate from water to land. Tides offer an interesting possibility: an environment that can act as a bridge between land and water. Many people think that some creatures use this bridge to complete the evolution similar to landing.

Among the power sources that cause tides, the moon is the main driving force. Because the moon is closer to the earth, its gravity is greater, and its influence on tides is greater, which is more than twice that of the sun; Moreover, the moon orbits the earth once a day, which will cause two ups and downs of the sea around the earth.

Therefore, the moon naturally bears most of the responsibility for helping biological evolution. Without the gravity of the moon, the tides on the earth would be much weaker. The volume of land covered by seawater and the area of land covered by seawater will be greatly reduced, and the richness of life on land will also be greatly reduced.

There may be no human beings on the earth: the wind is too strong.

The increase of the earth's rotation speed has a direct impact on the strength and direction of the wind on the earth's surface. Usually, the faster the star rotates, the stronger the wind and the longer it lasts. On Jupiter, which has only 10 hour a day, hurricanes are similar to spinning demons and can last for decades or even centuries (other factors on Jupiter also have some influence on this).

If the earth also roars from time to time, life on the earth will be a different scene: the roots will be deeper and there will be few branches and leaves. What about people and animals? Because the earth rotates faster, there will be strong storms and hurricanes in the east-west direction, and there will be no trees on the earth, because plants must be close to the ground to survive, and animals need to become stronger. It is best to have aerodynamic shapes and natural crustaceans on their bodies, because only in this way will they not be blown up by strong winds-maybe some creatures like turtles and armadillos will rule the earth.

If they can evolve into advanced intelligent creatures, then they will not talk to each other, because it is obviously too difficult to talk in the wind.

There may not be a third human being on the earth: there is no life on the surface.

The faster the planet rotates, the more intense its surface and shallow underground activities are. In other words, the earth's orogeny will become less noticeable because it is no longer affected by the extra horsepower of the moon. Then the various ecological environments on the earth's surface will not be as diverse as today's world.

In a simple ecological environment, it is still unknown whether advanced intelligent creatures like human beings can be cultivated. Or, to be precise, there are few mountains and lakes on the earth, and even if human beings are finally born, it will take a long time.

Maybe only during the day or only at night (the seasons are the same! )

The moon is a big satellite in the solar system. Of the 66 known satellites in the solar system, only four are larger than the moon. The strong gravity of the moon provides the earth with a kind of force called constraint moment, which plays a role in stabilizing the earth's rotation and preventing the earth from shaking or bumping in the orbit of revolution.

The different fate of Mars confirms this contribution of the moon to the earth. Mars has only two small satellites, and its rotation is unbalanced. According to calculation, the inclination of its rotation axis and orbit will fluctuate between 10 and 50 degrees.

What would the world be like without the help of the moon? There is no doubt that the climate and seasons will lose their regularity. If the inclination of the rotating shaft is zero, there will be only one season around the world; An inclination of 90 degrees will make the time of day and night equal in the world. The earth's 4.6 billion-year climate history will be completely changed.

Less than 24 hours a day!

A day 3 billion years ago may be only half a day close to modern times. During these 3 billion years, the moon acted as a reducer for the earth's rotation. The tides caused by the moon constantly scour the earth's surface and fluctuate back and forth between the land and the ocean, thus generating huge friction and adding a resistance to the earth's rotation, thus greatly slowing down the rotation speed. Without the drag of the moon tide, our day would be only 14 hours.

China lacks many festivals!

The lunar calendar in China is a combination of yin and yang. The so-called lunar calendar, that is, the monthly calendar (the moon was called lunar calendar in ancient times); The so-called solar calendar is the solar calendar. The first 1 day of each month in the lunar calendar is called the first day (also called the new moon), that is, the moon is located between the earth and the sun and has just passed the connection point between the earth and the sun. At this time, the sunlight reflected by the moon is almost invisible on the earth.

Similarly, on the15th day of each month in the lunar calendar, the earth is located between the moon and the sun, so the sunlight reflected by the moon almost completely falls on the earth, and the moon phase is full moon. In other words, the lunar calendar can accurately describe the position of the moon between the earth and the sun, and the corresponding moon phase changes.

Except for the 24 solar terms, almost all traditional festivals in China are related to the lunar calendar, such as the Spring Festival, Lantern Festival, Dragon Boat Festival and Mid-Autumn Festival, as well as the Dragon Rise on February 2nd, Yu Wang's birthday on June 6th, Valentine's Day on Qixi, Mountaineering Festival on September 9th and Lunar New Year on October 15th.

Imagine how many traditional festivals we would lose without the moon. There is no theme of reunion with relatives, no wandering head to meet friends, and no sustenance and spiritual comfort of acacia.

Love is paler!

Before the flowers bloom, under the moon, "on the willow tip and the moon, people meet after dusk." It seems that there is a moon next to good or sad love in the world. How many shadows of the moon have you experienced in love? If there is no light of the moon, will those love stories that have moved for thousands of years be eclipsed?

1, there is no most affectionate love-Chang 'e and Hou Yi's Chang 'e are Di Ku's daughters and Hou Yi's wife, and Hou Yi invited the elixir of life from the Queen Mother of the West. Chang 'e stole this elixir and became a fairy. After Chang 'e flew to the Moon Palace, she lived in the bleak and indifferent Guanghan Palace and missed Hou Yi. Day by day, Chang 'e and Hou Yi are the most sentimental love stories in folklore.

2, there is no most romantic love-Zhang Sheng and Cui Yingying stay in the west wing of the moon, and the windward door is half open; The partition wall is moving, and it is suspected to be a jade man. According to legend, during the Zhenyuan period of Tang Dynasty, Zhang came to Fusaiji and got acquainted. Through the biography of the matchmaker, Zhang Sheng climbed over the wall and met Yingying on a moonlit night, and performed a love story.

3. There is no sincere love-Su Shi and his wife Wang Fu have lived and died together for ten years. Never think, never forget. ..... When night came, my dream suddenly came home. Xiao Xuan window, get dressed. Care for each other without words, only a thousand lines of tears, it is expected that heartbroken every year, on the moonlit night, short pine hills. Thousands of miles away, the great poet remembers his wife who died ten years ago, and this feeling will not fade and change with the passage of time. ……

Poets are harder to do!

Poets have an indissoluble bond with the moon. Among the 300 Tang poems, six are titled "Drinking the bright moon alone" and "Looking at the moon and thinking about a distance", and there are also "Xijiang Moon", "Jiangyue" and "Qin Louyue" on the epigraph in the Song Dynasty. Of course, there are countless poems that mourn the past and lament the present. Let's imagine how the poet would feel at night without the moon. What will the poems about the moon by Li Bai, Su Shi, Du Mu and Li Qingzhao look like?

Appendix: Ten Poems about the Moon by Poets-

1, Li Bai is so bright at the foot of my bed that it is suspected of frost on the ground; I looked up at the moon and looked down, feeling nostalgic. (Silent Night Thinking)

2. When does Su Shi have a bright moon? I take my glass from a distance. (water regulation)

Du Fu is in Fuzhou, far away. She is watching the moonlight, watching it alone from the window of her room. For our boys and girls, poor little baby, too young to know where the capital is. (moonlit night)

4. Li Shangyin's mica screen is dark and the long river is sinking. Chang 'e, I must regret eating the elixir, and now I am alone, in the blue sky, singing every night. (Chang 'e)

5, Zhang Jishuang night, Jiang Feng fishing and sleeping; In the lonely Hanshan Temple outside Suzhou, the bell that rang in the middle of the night reached the passenger ship. (Night parking near Fengqiao)

Comprehensive excerpt from Tencent. com