What is humphry davy's contribution to life?

1778 12 17 humphry davy was born in Penzance, Cornwall, southwest England. Humphrey entered the local grammar school at the age of six. At school, he is a playful student who is keen on fishing all day and looking for fun in the wild. But he is very talented and always understands the knowledge in textbooks quickly. In order to give full play to his talents, his father followed the teacher's advice and sent him to Penzance City for further study on 1793, and he lived in the attic where his mother's adoptive father, Mr. John Tang Jin, lived. Here, you can enjoy the waves of the sea, sunrise and sunset, and write poems through the window. Nature always makes his heart surge, and he often expresses his feelings by reading sonnets aloud. Here, David is fascinated by chemical experiments. But his father's sudden death ruined his plan. My mother didn't send enough money to eat. David was forced to stop the experiment that fascinated him and lock the chemical experiment device in the cupboard. In this case, Mr. Tomkin suggested that David work in Mr. John Bolesse's pharmacy. Bolesse is a good doctor with rich practical experience. David worked hard in the laboratory to realize his dream of becoming a doctor. He walked into the library with a large number of medical literature books. Among the numerous masterpieces, he found lavoisier's works, and then Nicholson's Chemical Dictionary. After reading the works of these chemists, young David realized that learning chemistry was his real ambition. He began to engage in chemical research, and Bells invited David to work in his laboratory in Clifton. David accepted the invitation with pleasure. His first task is to study the characteristics of nitrous oxide. Samuel Mitchell, an American scientist, believes that if this gas is inhaled into respiratory organs, it will cause serious diseases. But David found that nitric oxide is absolutely harmless to human body. Later, after many experiments, this conclusion is correct. He wrote the experimental results into the paper "Chemical and Scientific Research on Inhalation of Nitrous Oxide" and became a world-famous scientist from then on. In order to do experiments, David often inhales various gases to do experiments. He almost died when he inhaled gas containing carbon monoxide. However, David, who loves the truth deeply, has already abandoned everything. David made many contributions to the scientific community all his life. 1829 died on May 29th at the age of 5 1. At 1800, David turned his research target to electrochemistry. Before Volt's electric pile (later battery) 1800 was made public, this remarkable new invention had been spread privately. David also lost no time in entering this new field, and published six papers in just six months. 180 1 year, at the invitation of Count langford, David went to Royal College London as a chemistry assistant. 1802, 23-year-old David was promoted to professor. In the auditorium full of audience, David's speech quickly won him a reputation as an outstanding speaker. In a short time, David became a popular figure in London. Praise and admiration are everywhere. The glitz of the world didn't go to the head of the young scientist. David still teaches applied chemistry and agricultural chemistry, and devotes himself to all kinds of scientific research. At the same time, he continued to care about the chemistry of electricity. 1806, at the lecture of the Royal Society in Becca, David published a paper on some chemical functions of electricity, which caused a sensation in the academic circles. Although there was a war between Britain and France at that time, the French Academy of Sciences gave him a prize of 3000 francs for this paper. 1807165438+1October 19, David published a report on the discovery of alkali metals, which once again caused a shock in academic circles. Encouraged by his achievements and general praise, the scientist carried out more in-depth work in the laboratory. Preliminary research led him to discover two new metals: potassium and sodium. But even this would not be enough David knows nothing about their properties, because these metals cannot be extracted in large quantities, and the reaction ability of sodium and potassium is very active. David began a series of experiments. In one experiment, two metals, sodium and potassium, reacted strongly with water. David's right eye was injured in the explosion, which led to blindness. But David didn't flinch because of this. He still insisted on exploring the properties of alkali metals. After preliminarily determining the properties of sodium and potassium, he successively separated new elements such as barium, strontium, magnesium and boron by electrolysis in 1808. 1865438+On April 8th, 2002, humphry davy was knighted by the British royal family for his contribution to scientific development. 18 15 years, many coal mines in Britain suffered great disasters, and thousands of miners were killed due to mine gas explosion accidents. Entrusted by the Coal Mine Disaster Prevention Association, David began to study the explosion-proof problems of flame and gas, and as a result, he successfully developed a safety lamp widely used all over the world. This invention freed the miners from the threat of gas forever. This is David's most important achievement in the field of applied science and his last important research achievement. At that time, David said that the work was for the benefit of mankind rather than personal interests, so he didn't claim the patent right. Because of this achievement, David won the langford Medal. 1820 was elected president of the royal society. David devoted himself to chemistry at the cost of his life and made great achievements. It can be said that David's success is based on his own talent, which was bought with diligence and hard work. His persistence in truth and the spirit of daring to explore are always worth learning by future generations.