On this day, 49 years ago, on March 8, 1976 (February 8, 1976, the lunar calendar), three major meteorites fell from the sky, and three great men of that year passed away one after another. On the afternoon of March 8, 1976, a meteorite in space fell into the earth's atmosphere at a speed of more than ten kilometers per second in the direction of the earth's orbit around the sun. Due to the fierce friction between the meteorite and the dense atmosphere, it burned and glowed when it flew over Jilin, becoming a large fireball. It exploded over Jinzhu Commune in the suburbs of Jilin at 15:01:59 on the 8th. After the meteor exploded, it scattered in radial directions. A large number of small meteorites were scattered in the Lijia Brigade of Datun Commune in the suburbs of Jilin City and Jiangmifeng Commune in Yongji County; slightly larger ones fell directly in the No. 9 of Jinzhu Commune and the Nanlan Brigade; the three largest meteorites continued to fly west by south along the original flight direction, and successively landed in the Santaizi Brigade of Jiuzhan Commune in the suburbs of Jilin City, the Dahetian Brigade of Gudianzi Commune and the Mountain Brigade of Huapichang Commune in Yongji County. When the last piece fell to the ground at 15:02:36, it broke through the 1.7-meter-thick frozen soil and fell into the ground 6.5 meters deep, creating a large pit on the ground with a depth of 3 meters and a diameter of more than 2 meters. The earth-waves were tens of meters high, and the soil splashed hundreds of meters away. According to the analysis of the meteorites collected so far, the meteorite rain scattered an area of more than 500 square kilometers, including 7 communes in the suburbs of Jilin City, Yongji County, and Jiaohe County, with a population of more than 100,000, and no casualties or losses were caused. After the meteor rain landed, local people immediately reported to relevant departments. China Academy of Sciences quickly formed a joint investigation team to rush to the scene, and conducted a series of scientific inspections with the assistance of provincial and municipal science and technology departments. So far, more than 100 meteorites have been collected. Among them, the smallest weighs less than 0.5 kilograms, and three pieces each weigh more than 100 kilograms. The largest piece weighs 1770 kilograms, which greatly exceeds the weight of the world's largest stone meteorite collected in the United States (1078 kilograms). This meteor rain is rare in the world in terms of its quantity, weight and scope. It is of great value for the research of astronomy, astrophysics, high-energy physics, cosmic chemistry, celestial history, earth history and other aspects. According to preliminary analysis and identification by the joint investigation team of China Academy of Sciences, the meteorites that landed this time have various shapes, including cuboid, hexahedron, cone, etc. There are black and black-brown melted shells and air marks of varying sizes on the surface of meteorites. The minerals contained in meteorites are mainly pyroxene and olivine, and a small amount are metallic minerals such as ferricite, nickelite, and magnetite. They have a typical chondrite structure, so they are named "olivine-bronzer pyroxene chondrite". The chemical elements contained in these meteorites are mainly determined to include silicon, magnesium, iron, sulfur, calcium, nickel, aluminum, etc. What is Jilin No. 1 meteorite called a meteorite? Meteorite is a kind of celestial body that objectively exists in the universe. As early as more than 3000 years ago, my country had records about meteors and meteorites, and it had correct scientific opinions on meteorites long ago. For example, the Book of Records of the Historian Tianguan said: "When a star falls to the earth, it will be a stone." The solar system has nine planets, and between the orbits of Mars and Jupiter, there are thousands of asteroids. In addition, there are many interstellar materials in the space near the earth, small ones like dust and large ones like mountains. These celestial bodies all move at a certain speed and orbit. When interstellar matter or individual asteroids with special orbits approach the Earth, they sometimes enter the atmosphere and collide and rub violently with the atmosphere, generating heat, burning, and shining light. This is the meteor we see. Most meteors began to burn at altitudes below 120 kilometers above the ground, and small "dust" burned to ashes dozens of kilometers above the ground. A few large ones fall slower and slower due to the influence of air resistance. The remnants of these meteors that fall to the ground are meteors, or meteorites. There are many meteorites that fall to the earth every year, but most of them are small and most of them fall into the ocean and infrequently visited places, making them difficult to detect. Sometimes, meteorites explode at high altitude and then fall down like a "stone rain". This is a more rare phenomenon of meteor rain. Meteorite surfaces generally have dark brown hard shells, which are formed after melting at high temperatures and gradually cooling when the speed decreases. Another feature of the surface of the meteorite is that there are many small craters shaped like river clam shells. These are traces of its friction and combustion with air. The scientific term is called air marks. People can tell which direction the meteorite is flying based on the shape of the dent. According to the composition contained in meteorites, they can be divided into three categories, namely: iron meteorites, stone iron meteorites and stone meteorites. Chemical analysis of meteorites shows that the various chemical elements that make up meteorites are all known on Earth, that is, the same elements that make up other celestial bodies in the solar system. Meteorites are of great value in modern scientific research. This precious cosmic sample not only brings us a lot of information about the universe, but also provides rare intelligence for a series of scientific research fields. Since the founding of New China, three meteor showers have been discovered and collected. The first time was the discovery of an iron meteorite rain during the Ming Dynasty in Nandan County, Guangxi in 1958; the second time was the discovery of a stone meteorite rain in Shuangyang County, Jilin Province in 1971; this is a rare stone meteorite rain in world history. Extended reading: Three major meteorites fell from the sky, and three great men died one after another this year Extended reading: Three major meteorites fell from the sky, three great men died one after another this year. The three greatest great men in the modern revolutionary history of China-Zhou Enlai, Zhu De, and Mao Zedong passed away one after another in this year. Mao Zedong, Zhou Enlai, and Zhu De In addition, a very coincidental and mysterious thing happened this year, that is, three huge meteorites fell from the sky. Afterwards, many people believed that these three huge meteorites represented the three great men of Mao Zedong, Zhou Enlai and Zhu De. In China's traditional culture, great people are all stars descending from the sky, and meteors will fall when they die, such as the stars falling into Wuzhangyuan by Zhuge Liang, the ancient famous figure. Therefore, in the year when three great men, Mao Zedong, Zhou Enlai, and Zhu De, died one after another, three large meteorites suddenly fell from the sky, which cannot be described as a "coincidence". Let's first take a look at what's going on with these three meteorites. It was around 3 pm on March 8, 1976. In an area of 500 square kilometers around Jilin City, Yongji County, and Jiaohe City in Jilin Province, an unprecedented meteor rain suddenly fell. Among them, three meteorites were very huge and were named Jilin No. 1, No. 2 and No. 3 respectively. The first meteorite of the Jilin No. 1 meteorite weighs 1770 kilograms and has a volume of 117 x 93 x 84 cubic centimeters. It is the largest stone meteorite discovered so far in the world. According to Zhang Cuihua, an eyewitness at the time, it seemed as if a fire dragon flew past the sky and roared into the ground. It fell into the ground to a depth of 6.5 meters. The mushroom cloud rose up to more than 50 meters high and did not disperse for a long time. According to research by astronomers, these meteorites are older than the earth. Our earth was born about 4.55 billion years ago, but these meteorites were formed 4.7 billion years ago and have been wandering between Mars and Jupiter. About 8 million years ago, this asteroid was smashed and shattered. It wandered in space for 8 million years before rushing into the earth. Cosmic level things are so mysterious that only people of the age of Taishang Laojun and Tathagata can understand. According to "Journey to the West", the Jade Emperor was only 220 million years old. This meteor rain is by far the largest in the world. A total of 138 meteorite specimens were collected, with a total weight of 2616 kilograms and covering an area of more than 500 square kilometers. However, what is unbelievable is that such a large-scale meteor rain did not cause any casualties or casualties. It is indeed a miracle. Jilin No. 2 Meteorite Jilin No. 3 Meteorite However, this is also normal. Three great men have spent their entire lives seeking welfare for the people. How can they easily harm the people? In addition, other important figures who passed away in 1976 included these people-Zhang Wentian, secretary of the Central Secretariat, Lin Yutang, a humorist, Shang Xiaoyun, one of the four famous daddies, British Marshal Montgomery, Agatha Christie, the mother of the world's detective novels, Martin Heidegger, one of the greatest philosophers of the 20th century...