自然界中存在大量的相似现象,如人和软体动物都存在着赖以生存的血红素、叶绿素和空气中的二氧化碳及氧气作用,便形成了他们自身的能源。二十世纪末,原本各不相干的物理学、化学、生物学、天文学、遗传学、医学等都殊途同归于量子力学。正因为客观世界中存在着普遍相似的规律,科学家们才从这一规律出发,获得了诸多科学成果。在研究电荷之间作用力问题时,英国物理学家卡文迪许由自然规律的相似性猜测到,电荷之间的电作 There are a large number of similar phenomena in nature, such as human and mollusk exist on the existence of heme, chlorophyll and air of carbon dioxide and oxygen, they formed their own energy. At the end of the twentieth century, originally unrelated physics, chemistry, biology, astronomy, genetics, medicine and so on all the way to quantum mechanics. It is precisely because of the universal similarity rules in the objective world that scientists have obtained many scientific achievements from this law. In studying the issue of force between charges, the British physicist Cavendish speculated by the similarity of the laws of nature that the electric charge between charges