论文部分内容阅读
早在公元前600多年,希腊哲学家塞利斯(Thales)就发现了用布摩擦过的琥珀能够吸引毛发的现象。我国古书中也有“琥珀拾芥”的记载。至今摩擦起电现象已被人们所熟知。可是还有一些问题值得一谈。实验表明:两根用毛皮摩擦过的硬橡胶棒互相排斥;两根用绸子摩擦过的玻璃棒也互相排斥;可是用毛皮摩擦过的硬橡胶棒与用绸子摩擦过的玻璃棒互相吸引。这表明硬橡胶棒上的电荷和玻璃棒上的电荷是不同性质的电荷。美国物理学家富兰克林(B·Franklin)首先提
As early as 600 BC, the Greek philosopher Thales discovered that amber rubbed with cloth can attract hair. Ancient Chinese books also have records of “amber amber”. The phenomenon of frictional electrification has been well known. However, there are still some issues that are worth talking about. Experiments showed that two hard rubber rods that had been rubbed with furs repelled each other; two glass rods that had been rubbed with silk were also mutually exclusive; however, the hard rubber rods that had been rubbed with fur and the glass rods that had been rubbed with silk felt each other. This shows that the charge on the hard rubber rod and the charge on the glass rod are different in nature. American physicist Franklin (B. Franklin) first mentioned