On September 17, Shenzhou 12 triumphed.
Tomorrow, October 16th, Shenzhou 13 is about to depart, Zhai Zhigang, Wang Yaping, and Ye Guangfu will perform the Shenzhou 13 manned mission. Once they were going to celebrate the Spring Festival in space!
This time, compared with the 12th, Shenzhou 13 has a longer execution time and a more severe mission. Moreover, Wang Yaping will become the first woman stationed in the Chinese space station and the first Chinese to leave the cabin. Of female astronauts, at the same time, this will also be a moment to make history.
China's aerospace is constantly rising and surpassing. This is not just a journey to the stars, but a return to the position of the Chinese in the universe.
In the universe, where is the place left for us?
As a hardworking and intelligent nation in the world, the Chinese were the first to recognize the universe and correctly recorded the movement of stars.
In the Warring States Period more than 2500 years ago, although Wei was listed as one of the " Warring States Seven Heroes ", its national power was not strong.
"Defeat to Qi in the East, lose more than 700 miles to the Qin land in the West, and humiliate Chu in the south" In addition to the idiom "Encircle Wei and save Zhao", overall, Wei's sense of existence is not high.
However, the Wei people Shishen , with only a self-made astronomical instrument and a pair of naked eyes, wrote eight volumes of "Astronomy" and "Huntian Map" in 400 BC. In the book, he recorded that "there is the image of a standing man in Japan", which is the earliest record of sunspot in human history.
In addition, Shi Shen also observed " corona " and "prominence", the earliest "yellow-red angle" was measured, and the concept of " white road " was proposed by summarizing the laws of the moon.
The most shocking thing is that Shi Shen successively measured the coordinates of 120 stars in the sky, accurately determined their longitude and latitude, and then connected them and the neighboring stars with an imaginary straight line to create 120 constellations, compiled " Shishi star list", this is the world's first work on constellations and star chart.
And until 600 years later, in the second century AD, the "Ptolemy catalog " drawn by the ancient Greeks Ptolemy only recorded 48 constellations.
After Shishen, there was an outstanding wizard in the Warring States Period, who lived in more than 300 BC in Qi State astronomer Gander .
Gan De created the "Gan's Four or Seven Method" for star positioning on the basis of Shi Shen's "Shi's Star List".
He divided the stars in the sky into four regions, east, south, west, and north, and each region is divided into seven parts. This is the " 28-stay" that continues to this day, which not only builds a complete world of stars , Also opened up the sky of imagination for us, I don’t know how many myths and legends came from the twenty-eight nights.
What Gander did is not just to "check out the gaps" on the basis of Shi Shen's research. He conducted long-term observations and quantifications on the movement of Mars and Venus, and measured the Mars regression period to be 587.25 sky,It is only 3.35 days behind the actual value of 583.9 days, and the error is only six thousandths.
He also saw the moon of Jupiter and recorded it as "if there is a small red star attached to it". Therefore, he became the first astronomer to leave the observation record of Jupiter . Galileo recorded the moons of Jupiter more than 2,000 years earlier.
Gander compiled his life's hard work into several astronomical works such as "Astronomy and Astrology" and "Song Sui Jing". He has made breakthrough contributions in star division and naming, planetary movement and rendezvous cycle.
Finally, the works of Shi Shen and Gander merged into " Ganshi Star Sutra ".
In fact, before the "Gan Shi Jing", the Shang Oracle had the earliest records of solar and lunar eclipses in the world; in 613 BC, Spring and Autumn Period_ The of span6span Lu Guo, the historian, recorded the movement of Halley's comet for the first time in human history.
In addition to the "Gan Shi Xing Jing", China has never lacked scientists, Zu Chongzhi, Zhang Heng, Liu Hui, Qin Jiuzhao, etc., are as bright as stars, and Chinese people are never lacking. The spirit of science, such as the book " Nine Chapter Arithmetic", which was written in the first century AD, addresses issues such as land measurement, grain conversion, structural calculations for housing construction, and allocation plan design.
Many great inventions and discoveries in human history,Both started in China.
On the beginning Spring and Autumn , down to the Southern Song Dynasty, the Chinese used their own methods to define the world's science and technology, until modern times, because they did not catch up with the progress of modern science and industrial civilization, a huge generation gap occurred.
Only a nation that has experienced suffering can understand the great meaning;
Only a nation that has created glory can know how to create glory again.
From Shenzhou V to Shenzhou XIII, China Aerospace takes one step at a time. This is our common journey, and the goal is the entire universe!
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