Benjamin Franklin (1706.1.17—1790.4.17) was an American industrialist, scientist, social activist, thinker and diplomat in the18th century. He is the first scientist and inventor in American history who enjoys an international reputation. In order to explore electricity, he once made a famous "kite experiment" and made remarkable achievements in electricity. In order to deeply explore the law of electricity movement, many special terms such as positive polarity electricity, negative polarity electricity, conductor, battery, charge and discharge have become world-wide vocabulary. He borrowed the positive and negative concepts in mathematics, and expressed the nature of charge scientifically with the concept of positive and negative electricity for the first time. And put forward the view that charge can neither be created nor destroyed, and later generations discovered the law of charge conservation on this basis. He first put forward the concept of lightning rod, and the lightning rod made of it avoided lightning disaster and broke superstition. He is an excellent politician and a veteran of the American War of Independence. He participated in the drafting of the Declaration of Independence and the American Constitution, and actively advocated the abolition of slavery, which was deeply respected by the American people. He is the first French ambassador to the United States, so he enjoys a high reputation in the world. The top ten beauties are beautiful.-da ji.
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