German geologist Wei Gena was born in Berlin on 10. 1930 1 1 died in Greenland. Wei Gena, like Piri, is an expert in Greenland. He visited the Arctic island four times and died in Greenland on the fourth expedition. Like some predecessors, he was deeply impressed by the ground adaptability of the coastlines in South America and Africa. It's not hard to imagine. The convex part of the east coast of South America coincides with the concave part of the west coast of Africa. It seems that the western hemisphere and the eastern hemisphere are slowly drifting away. At least according to the longitude measurement made in19th century, Greenland and continental Europe seem to be one mile away in a century, and Paris and Washington are 15 feet away every year. San Diego and Shanghai are close to 6 feet a year. So in 19 12, Wei Gena proposed that the mainland was originally a whole, surrounded by a continuous ocean [Pangea or the whole earth]. This huge granite body is broken into several large pieces and slowly separated. Hundreds of millions of years later, it became like this. Wei Gena used this hypothesis to explain the changes of various types of glaciers, of course, because the relative positions of the poles and the mainland have changed. He also used this hypothesis to explain the similarity of species. For example, people have found related species on distant continents in the world. This seems to be a very reasonable and convincing theory. However, there is evidence to the contrary. It was found that the obvious movement of Greenland's geographical position was based on wrong measurement. More accurate measurements in the twentieth century show that this land has not moved at all. Nevertheless, new evidence about the continental shelf structure, the nature of cracks in the middle of the ocean and the discovery of Antarctic amphibian fossils have attracted more and more geologists. Wei Gena also took part in the debate about whether the lunar crater was caused by volcanic activity or meteorite impact. He dripped gypsum powder on a smooth layer of cement powder and tried to do a fine experiment. As a result, a small replica of the lunar crater was obtained. This experiment is so similar to the real thing that astronomers almost believe that the meteorite impact hypothesis is correct. In 2005, German meteorologist Wei Gena published his book The Origin of the Continent and the Ocean. In the book, he put forward the theory of continental drift. He pointed out that 300 million years ago, all continents in the world were a unified whole. Under the influence of various forces, after a long period of time, we separated and drifted, forming our ocean and land today. His theory has made mankind take a crucial step forward in exploring the earth. Wei Gena was born on1October 6th in the home of the director of an orphanage in Berlin. After graduating from high school, he studied in several universities. He studied meteorology at Innsbruck University in Berlin on 1905. After graduating from college, Wei Gena went to work in the high-altitude meteorological station. On April 5, 2006, Wei Gena and his brother flew into the sky in a big balloon with a capacity of 3,000 cubic meters. They flew in the air for 54 hours. It broke the world record that manned balloons stayed in the air for 35 hours at that time. During the flight, they measured the air temperature, air pressure, wind speed and wind direction, and realized Wei Gena's dream of watching clouds and wind in the air. Wei Gena also envied those explorers who went to the North and South Poles, and hoped that one day he could explore in person like them. In the summer of 2006, Wei Gena went to Greenland with a Danish expedition. Greenland is the largest island in the world, and it is also the continental glacier after Antarctica. In two years, Wei Gena learned about the differences between the Greenland Plateau and the marine climate, and collected a lot of precious meteorological data. After visiting Greenland, Wei Gena returned to Germany and became a lecturer at the University of Mariburg. During his teaching, he wrote many articles. The most important thing is his meteorological monograph "Thermodynamics of University Circle". 19 10 one day, Wei Gena stumbled across the outlines of the two sides of the Atlantic Ocean on a map of the world, especially the prominent part of eastern Brazil in South America, which was very consistent with the Gulf of Guinea on the west coast of Africa. So he came up with the idea that the African continent and the South American continent were once connected, and then split and drifted away. Since then, he has paid attention to observation and research, and found that there are many phenomena that can prove his idea is correct. 19 12 in the spring, he soared in the sky again by balloon. That year, he visited Greenland again. During the inspection, he continued to study and think about the problem of continental drift. Finally, he made up his mind to shift his research direction from meteorology to geology. This is a major turning point in his academic career. Shortly after the investigation in Greenland was completed, World War I broke out in the summer of 19 14. The war forced Wei Gena to stop studying and join the army. Soon after, he returned to China because of injury, and he began his scientific research work again in his hospital bed. He pointed out in his book: About 300 million years ago, the global continent was a whole. It is surrounded by a piece of Wang Yang. Under the centrifugal force produced by the earth's rotation and the gravitational force of the sun and the moon, this primitive continent split into several pieces and floated away. After a long time, it gradually formed our ocean and land today. This state is still slowly developing and changing. Although this theory is not perfect in detail, Wei Gena has provided a lot of powerful arguments from geomorphology, geology, geophysics, paleontology, paleoclimatology, geodesy and many other aspects. Wei Gena's theory of continental drift has always been opposed by people, but the development of science and technology has proved its correctness. Now, it has developed into the current plate tectonic theory. Wei Gena didn't stop exploring. 1929 Third trip to Greenland. 1930, nearly 50-year-old Wei Gena went to Greenland for the fourth time, but people would not think that this was his last expedition. Wei Gena grew up in 1 1 due to bad weather and lack of food.