What are the stories of astronomer Yuzhe Zhang?

Observe the sky under the Japanese bombing. 1August 937 1 1, an important solar activity forecast was obtained in Yuzhe Zhang:1941September 2 1 will bring the total solar eclipse to Xinjiang, China. According to Yuzhe Zhang's calculation, the eclipse belt will pass through Gansu, Shaanxi, Hubei and Jiangxi, and finally enter the sea from northern Fujian. Later, it was confirmed by Greenwich Observatory in Britain that the total solar eclipse predicted by Yuzhe Zhang on September 2 194 1 day was a rare astronomical spectacle in the world for 400 years, and its ornamental value and academic value exceeded any previous one. In order to observe this spectacle, the relevant departments of our country took active actions and made careful arrangements. 1940 1 month, the China Solar Eclipse Observation Committee was announced, and instruments were purchased, maps were drawn, and transportation materials were arranged to ensure the smooth progress of the observation. 194 1 in April, China solar eclipse observation team was established, with Yuzhe Zhang as the captain and personally leading the team to Kunming for training. At that time, on the eve of the Pacific War, the Japanese army stepped up its bombing of Hongkong and the southeast coastal areas of China. The observation mirror purchased by the observation team from Germany was blown up by the Japanese army. As time is short, it is impossible to import instruments and equipment from abroad. Yuzhe Zhang used his quick wits to remove the lens of the 6-inch photographic telescope, put on a self-made wooden frame, cover the lens barrel with black cloth, and attach a 24-inch reflective telescope film box to take pictures of the corona. With the great assistance of Central University, Jinling University and the General Administration of Surveying and Mapping, the necessary equipment was finally equipped. At this moment, Yuzhe Zhang deeply breathed a sigh of relief. According to the forecast, most of the areas covered by the solar eclipse belt in China 194 1 year have become enemy-occupied areas, leaving almost no observable areas. These places are close to the occupied areas and will be bombed by Japanese planes at any time. Life is in danger at any time. Yuzhe Zhang is well aware of the great significance of this observation, which is the first organized modern solar eclipse observation in China, and its record will have a far-reaching impact on the world astronomical science. In order to make China's astronomy career step into the ranks of the top players in the world, it is necessary to complete this arduous task even at great risk. Yuzhe Zhang chose Lintao County as the observation point. He thinks that there are many sunny days in autumn in Lintao County, which is only 100 km away from Lanzhou, the largest city in northwest China, which can provide more convenience for the observation team. On June 29th, 194 1, Yuzhe Zhang led all the members of the observation team to take a 2.5-ton military truck and set off from Kunming for Lintao, starting a journey of 3,000 kilometers. The car was near Chongqing and was bombed by 27 Japanese planes. Yuzhe Zhang and his team members jumped out of the car, entered the farmland and landed on the ground. The plane circled overhead and fireworks were everywhere. Fortunately, there were no casualties among the members of the observation team. After the air raid, the road was riddled with bullets and bones were everywhere. Seeing all this, Yuzhe Zhang resolutely drove on. After a six-week bumpy journey, the observation group arrived in Lintao on August 13. With the strong support of local soldiers and civilians, the observation group set up a temporary observation point in the square in front of the stage of Taishan Temple. In the days of installing and debugging instruments, the observation team often encountered air strikes by the Japanese army. According to the statistics of Central Daily News, after the observation team arrived in Lintao, * * * was attacked by Japanese planes for 25 times. There was an air raid the next day. While Yuzhe Zhang was debugging the instrument, he immediately ran to a nearby tree and hid. Everyone around him was worried about him. After the air raid, he buried himself nervously in his work again. 1941September 2 1 9: 30, the initial loss of the global total solar eclipse finally appeared. Wan Li was clear, but the shadow of the moon began to invade the sun from the west. After 40 minutes, the sun was "eaten" by 1/3, the sky became darker and the temperature dropped. After more than half an hour, the whole sun was "eaten" and the moon covered the whole sun gear. After a while, ten thousand golden lights were emitted around the total solar eclipse. "The corona appeared!" "The people present cheered and thundered. 10: 59, the sun began to shine and everything returned to its original state. Yuzhe Zhang and his teammates observed and captured 170 precious astronomical data, and * * * took more than 200 photos and more than 20 "color" films. Chongqing Central Radio broadcasted the live broadcast to all parts of the world by radio waves. The eclipse lasted for 3 minutes, which was completely consistent with Yuzhe Zhang's prediction. When the Chinese nation was invaded by foreign countries, the significance of China's successful organized solar eclipse observation had already exceeded the scope of "astronomy".