Hayne's law and Murphy's theorem behind the explosion at China Southern Airlines Laboratory

#China Southern Airlines Deflagration Accident Building Just Used Last Year#China Southern Airlines Deflagration Accident Building Was Just Used Last Year #Yesterday afternoon, a laboratory of Nanjing University of Aeronautics and Astronautics General Road Campus deflagration occurred, causing a total of 2 deaths and 9 injuries. The cause of the accident is under investigation. At present, the rescue work on the scene has been completed. I read the report of the Beijing News and interviewed an eyewitness, Liu, who said that she heard a total of 3 explosions at the scene, and the surrounding students were already evacuated after the first time, and the picture of the mushroom cloud spread on the Internet was the third explosion. According to insiders, the scene is suspected of deflagration of metal powder.

In recent years, explosions in university laboratories can be said to be common. On December 26, 2018, an explosion occurred in the laboratory of Beijing Jiaotong University. An explosion occurred during a scientific experiment on landfill leachate sewage treatment conducted by students in the laboratory of Building 2, resulting in the death of 3 students participating in the experiment. On December 18, 2015, an explosion and fire accident occurred in a laboratory on the second floor of He Tianlou, Department of Chemistry of Tsinghua University, and a postdoctoral fellow surnamed Meng who was doing experiments died on the spot.

I inquired on the Internet, according to incomplete statistics, since 2006, Fudan University, Yunnan University, Beijing Institute of Technology, Sichuan University, Nankai University, Nanjing University of Science and Technology, Changzhou Institute of Engineering, China University of Mining and Technology, East China University of Science and Technology, Soochow University, Beijing University of Chemical Technology, Shanghai Donghua University have all had laboratory outbreak accidents, and even on April 29, 2015, the laboratory of a middle school in Anhui province also exploded, causing 3 teachers to be injured.

Any hidden danger in the laboratory, any small negligence, may lead to a large accident and cause immeasurable losses. In the comment area of the news, I saw that some netizens said, "It is still quite common for a chemical laboratory to explode", "Sometimes experimenters teach students to do it again" "I know the danger of chemical experiments, I wish you colleagues safety and health". The netizens who left these messages should be related to the industry, if what they say is true, it is really scary to think about it. Security risks are everywhere.

Although scientific experiments require a spirit of adventure, risk-taking does not mean playing with life. Hayne's Law states: Behind every serious accident, there must be 29 minor accidents and 300 attempted precursors and 1,000 accident hazards. In fact, from the national level to major universities, laboratory safety cannot be said to be unattractive. In 2017, the General Office of the Ministry of Education issued the Notice of the General Office of the Ministry of Education on Strengthening the Safety of Teaching Laboratories in Colleges and Universities, emphasizing the need to strengthen the safety of teaching laboratories in colleges and universities. In 2019, the Ministry of Education issued the "Opinions on Strengthening the Safety Work of Laboratories in Colleges and Universities", which clearly stated that it is necessary to establish a safety regular inspection system, a safety risk assessment system, a full-cycle management system for hazard sources, a laboratory safety emergency system, and improve the laboratory safety management system.

However, no matter how good the technology, no matter how perfect the regulations, at the practical level, can not replace people's own quality and sense of responsibility. How to make a difference in safety work? Remember another safety rule, Murphy's Theorem, which can give us some enlightenment. Murphy's Law originated from an American captain named "Murphy", who believed that "as long as there is a cause for an accident, it will happen" and that "no matter how unlikely it is, it will always happen and cause the greatest possible damage". This tells us that we must not be careless about any hidden danger of accidents, cannot hold a fluke mentality, or hide the signs and hidden dangers of accidents, but must think of all means and take all measures to eliminate them, so as to nip accident cases in the bud. These are two Western rules, in fact, our ancestors warned future generations a thousand years ago - the of a thousand miles is destroyed in the ant nest, and the small hole does not make up for the big hole and complains bitterly.