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 capture of lightning.

Religious belief and kindness to human beings are the most sacred things he thinks. He has many inventions, such as electrostatic generator, beautiful ancient glass piano and so on. The most important invention is the lightning rod, which is the result of a lot of experiments. Franklin carefully designed the size of lightning rod, the types of ground equipment and how to connect with buildings. Until today, the lightning rod has basically maintained its original design. From 65438 to 1940s, 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 happen, but they didn't know what electricity was and how electric shock happened. Franklin tried to establish the working principle of electricity through experiments and found ways to store and apply electricity. He first put forward the current theory, which believed that the current would flow from the positive electrode to the negative electrode along the conductor. Many professional words he created are still in use today, such as positive electricity, negative electricity, battery and so on. Franklin's greatest achievement is that he thinks that lightning is actually another kind of electric spark that 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 characteristics of electricity and lightning, and then 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. 1752 Summer, when it was cloudy, Franklin and his son William made a kite and put it in the air. Franklin soon noticed that the kite string began to split, which indicated that there was an electric charge. So he hung a key on the traction line and rubbed it with his knuckles to touch the key. As a result, sparks appeared, proving that lightning is actually a lot of static electricity. Franklin's theory was later confirmed by the French, which established his position as a scientist. From then on, a famous saying was born in human history to describe his achievements, "He caught lightning from the sky and regained power from the autocratic rulers". Franklin's reputation as a politician and diplomat is very beneficial to his scientific achievements. However, many clergy in the United States, 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, with an average growth rate of 1 times every 25 years. 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 the identity of lightning and static electricity.

The glass harmonica was invented by Franklin, a famous American scientist, social activist and musician in 1763. It is a set of glassware placed in a horizontal spindle, filled with water through the player's pedal, and then made a sound through the subtle friction of his fingers.