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Wang Xiji, pioneer of China's space program, dies at 105_我的网站

凤凰大视野

一 |     (ECNS) -- Wang Xiji, one of the pioneers of China's space program, an academician of the Chinese Academy of Sciences, and recipient of the "Two Bombs, One Satellite" Meritorious Service Medal, died in Beijing on Wednesday at the age of 105 after an illness.    The China Academy of Space Technology said his death was a great loss to China's space program, expressing deep condolences and remembrance for the scientist who devoted his entire life to the country's aerospace endeavors.    In November 1958, shortly after the launch of the call that "we should also develop artificial satellites," Wang was transferred to the Shanghai Institute of Mechanical and Electrical Design under the Chinese Academy of Sciences, where he became the technical leader for sounding rockets.        At the beginning of the project, working conditions were extremely rudimentary. The team had no experience, reference materials or experts, and had to start from scratch. With only hand-operated calculating devices available, several team members worked day and night for more than two months to calculate a single flight trajectory.    With no launch site, they used a rice paddy on the outskirts of Shanghai as a makeshift launch pad. They hoisted the rocket onto its launch stand with a winch and pressurized the propellant using a hand pump.    On Feb. 19, 1960, Wang and his team successfully launched China's first sounding rocket, the T-7M, from the rice field. Although the rocket reached an altitude of only 8 kilometers, the launch marked a crucial first step in China's journey into space.    During the subsequent development of the Long March-1 rocket, Wang innovatively integrated technologies from sounding rockets and missiles. He formulated the technical plan for Long March-1, China's first satellite launch vehicle, and led the development of its overall design and prototype. His work laid an important foundation for the successful launch of China's first satellite.    In February 1968, Wang joined the newly established China Academy of Space Technology and continued to devote himself to China's space program.    On April 24, 1970, China successfully launched its first artificial Earth satellite, Dongfanghong-1, into space aboard a Long March-1 rocket, becoming the fifth country in the world to independently launch a satellite into orbit.    On Nov. 26, 1975, China successfully launched its first recoverable satellite. While the nation celebrated the successful launch, Wang hurried to the satellite tracking and control center, knowing that the mission would not be considered a complete success until the satellite returned safely to Earth.    He stayed awake for three days and three nights. Only when he saw the red-and-white parachute appearing in the sky did he finally relax. The successful recovery brought back China's first batch of high-resolution remote-sensing film covering the country, providing basic data for national land surveys, topographic mapping and other applications. China thus became the third country, after the United States and the Soviet Union, to master recoverable satellite technology.    Wang said he felt the main meaning of life lies in participating in the great cause of socialist construction and contributing his share to it. "I understand the cause of the Party and have made up my mind to strive to become a Communist," Wang wrote in his application to join the Communist Party of China.    He remained committed throughout his life to his belief that "one should strive to be a Communist," and honored his lifelong pledge: "I am willing to be a paving stone for space."    (By Gong Weiwei)                    。    

美国众议院的共和党多数派强势推动通过了一项名为“以色列安全援助强化法案”的提案,旨在强制推进对以色列的重型军火运输。此前,拜登政府因顾虑这批包括2000磅炸弹在内的重型武器可能被应用于以色列在加沙地带南部拉法的军事行动,而暂时叫停了交付流程。

二 |

此法案以224票赞同对187票反对的显著党派分野获得通过,绝大多数共和党议员支持,而民主党阵营中仅有16人背离,其余均投出反对票。该法案文本严厉批评了“拜登政府暂停对以色列特定武器转移的决定”,正值以色列面临史无前例的安全挑战之际。更进一步,法案提出,若美国未能履行交付延迟的重型武器,将暂停对国防部和国务院的部分资金供给。
尽管该法案被普遍视作象征性举措,其在民主党主导的参议院通过前景渺茫。投票前夕,拜登总统办公室已明确警告,若法案送达总统案头,将予以否决。白宫声明强烈反对该法案,认为其“妨碍总统有效执行外交政策的能力”,并可能“限制美国灵活调整对以色列安全援助的余地”。
拜登总统早前警示以色列,若其军事行动进一步深入拉法,美国将终止提供武器弹药供应。拉法,这个人口稠密的边境城市,已成为因以哈冲突而流离失所的约140万巴勒斯坦人的避风港。近期,以色列国防军(IDF)通知拉法东南部居民撤离,预告即将来临的袭击。
据统计,截至周二,约45万居民选择离开家园。

三 | 联合国协调办公室预警,拉法东部、加沙市及贾巴利亚难民营可能遭遇地面入侵及激烈战斗。

根据地方卫生部门数据,自2023年10月7日冲突爆发以来,已导致逾35000名巴勒斯坦人丧生,冲突始于哈马斯袭击以色列,造成约1200名以色列人死亡及250多人被俘。

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Published on:00:02:05