May 28 He is an academician of the Chinese Academy of Sciences. Winner of the "Two Bombs and One Satellite Medal of Merit" Wang Ganchang 115th birthday May 28, 1907 Wang Ganchang was born in An ordinary family in Fengtangwan, Changshu, Jiangsu In 1907, when he was born China is surrounded by Amid internal and external difficulties But 57 years later Wang Ganchang used his lifelong learning Brought a dazzling light to China Before engaging in the “Two Bombs and One Satellite” project Young Wang Ganchang has already shown his talent Admitted to Tsinghua University at the age of 18 After graduation, he stayed in school to teach Soon after, he successfully passed the Jiangsu Province government-funded study abroad exam Study for a master's degree at the University of Berlin in Germany Studied under the famous female nuclear physicist Meitner But in Germany Wang Ganchang left a small regret The international nuclear physics community at that time Surrounding The neutron, which had not yet been discovered, was discovered In 1930, when Wang Ganchang came to Berlin German physicist Walter Both Conducted an experiment He bombarded beryllium nuclei with alpha particles A type of Highly penetrating radiation And thought that this radiation might be gamma rays This discovery quickly attracted widespread attention in the physics community. Many scientists, including Marie Curie Research has been conducted on this Wang Ganchang, who had just arrived in Berlin Also interested in this But he thinks Gamma rays cannot have such high energies There may be a mystery behind it Wang Ganchang in his youth He applied to his mentor I hope to replicate this experiment using a cloud chamber detector. Maybe there will be new gains But Meitner heard But looking at Wang Ganchang Smiled disapprovingly "Hasn't Curie and the others already said that? This is the 50MeV gamma ray. Don’t do it anymore.” Wang Ganchang was unwilling to give in and repeatedly requested The instructor still rejected him. Wang Ganchang, who had just arrived in Germany I am just a graduate student with little influence. He dared not disobey his mentor's advice. I had to give up this idea. But two years later in 1932 James Chadwick Based on previous research The existence of neutrons was confirmed by a series of experiments. The method he used This is exactly the cloud chamber experiment method that Wang Ganchang wanted to try. 1935 Chadwick won the Nobel Prize in Physics for this discovery Wang Ganchang also regarded this incident as a lifelong regret. But it also made him understand There is only truth in scientific research, no absolute authority Although Wang Ganchang missed the Nobel Prize But after he returned to China in 1934 Formerly taught at Zhejiang University Produced another Nobel Prize winner —— Tsung-Dao Lee Soon after joining Zhejiang University The Anti-Japanese War broke out Wang Ganchang followed Zhejiang University to move west to Guizhou Traveling around and living a hard life Because of the devastation caused by war Wang Ganchang's heart The seeds of serving the country through science and technology were sown early on Wang Ganchang at the Joint Institute for Nuclear Research in Dubna, Soviet Union (third from right in the first row) 1956 With outstanding research achievements in the field of neutrinos Wang Ganchang represented China Joined the Joint Institute for Nuclear Research in Dubna, Soviet Union An international race to find microscopic particles begins Three years later, Wang Ganchang lived up to expectations First to discover anti-sigma negative hyperon Filling the gap in the antimatter particle family Shocked the world Soon after the discovery A telegram was sent from Beijing to Moscow The level is top secret Request Wang Ganchang to return to China immediately Wang Ganchang's 17-year disappearance What happened later Today we are already familiar with China's first atomic bomb exploded in 1964 China's first hydrogen bomb exploded in 1967 But few people know that Behind these achievements The 17 years when Wang Ganchang “disappeared” Since 1961, the mission Wang Ganchang changed his name to Wang Jing Say goodbye to family and past reputation Diving into atomic bomb research A leading scholar Disappeared from the international physics community After the successful explosion of atomic bombs and hydrogen bombs Wang Ganchang continued to conduct underground nuclear test research Until 1978 Wang Ganchang, who is over 70 years old He is now using his real name publicly again. Everyone suddenly realized It turns out that the old man Wang Jing who was researching the atomic bomb It is the "disappeared" Wang Ganchang "Wang Ganchang Star" naming certificate 1998 Wang Ganchang, 91, dies in Beijing 2003 National Astronomical Observatory Name an asteroid "Wang Ganchang Star" On the 115th anniversary of his birth This "star" is still shining Source: Science and Technology Daily The pictures in this article are provided by China National Nuclear Corporation |
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