Franklin's life and all his inventions

Franklin was a shrewd businessman and an extremely generous scientist. After he invented the efficient heating stove, he refused to apply for a patent and claimed that the invention should serve the public interest. Franklin's charity stems from his collective nature and Franklin's religious belief in catching thunder and lightning. Being kind to human beings is what he thinks is the most sacred thing. He has many inventions, such as electrostatic generator, beautiful ancient glass piano and so on. The most important invention is lightning rod, which is the result of his extensive experiments. Franklin carefully designed the size of the lightning rod, the types of ground equipment and how to connect it with buildings. Until today, the lightning rod has basically maintained his original design. In the 174s, Franklin made a breakthrough in electrical theory. At that time, people knew Leiden bottle, how to store electricity in it, and that electric shock would occur, but they didn't know what electricity was and how the electric shock happened. Franklin tried to establish the working principle of electricity through experiments and find ways to store and apply electricity. He first put forward the theory of current, which believed that electricity would flow from the positive electrode to the negative electrode along the conductor. Many professional words he created are still used today, such as positive electricity, negative electricity, battery and so on. Franklin's greatest achievement is that he believes that lightning phenomenon is actually another kind of electric spark originated from Leiden bottle, but it is more violent in form. To prove this theory, he experimented with kites and keys. Franklin had a gift for turning basic principles into simple experiments. He first made two tables, listing the respective characteristics of electricity and lightning, and then compared them and found that they were very similar, so he began to experiment. Franklin thought that the only way to prove the lightning theory was to erect a conductor on the spire of the church, but the highest point of the church was still not high enough. In the summer of 1752, when the sky was overcast, Franklin and his son William made a kite and put it in the air. Franklin soon noticed that the string pulling the kite began to split, which indicated that there was charge. So he hung a key on the traction line, rubbed his knuckles and contacted the key. As a result, sparks appeared, which proved that lightning was actually a lot of static electricity. Franklin's theory was later confirmed by the French, which established his status as a scientist. From then on, a famous saying was born in human history, describing his achievement, "He caught lightning from the sky and regained power from the autocratic ruler". Franklin's reputation as a politician and diplomat is very beneficial to his scientific achievements. However, many clergy in America, Britain and France also began to condemn Franklin. They insist that lightning is God's way of punishing sinners, and human beings cannot interfere at all. Rational Franklin scoffed at this. In fact, his electrical theory and the practical function of lightning rod have been more and more recognized. Franklin became the most famous American in Europe, and everyone knew that he was a man who conquered lightning. Franklin supported deism in philosophy and acknowledged the existence and objectivity of nature. He was also the first person who consciously used labor time to determine the value of production. Franklin predicted that the population of the United States would increase geometrically, doubling every 25 years on average. This prediction has been confirmed by the census of the American government in the last century. Franklin's electrical works and papers include: Experiments and Observations on Electricity, Opinions and Speculations on the Properties and Effects of Conductive Substances, Experiments and Observations on Electricity in Philadelphia, USA, and On the Identity between Lightning and Static Electricity.

the Glass Harmonica is a musical instrument invented by Franklin, a famous American scientist, social activist and musician, in 1763. It is a set of glassware placed in a horizontal spindle, which is filled with water through the pedal of the player, and then sounds through the delicate friction of fingers.