On April 2, Beijing time, Tencent Technology News (compiled/Xiangbei) reported that, according to foreign media reports, Facebook will announce the launch of a new product called Relationship at the f8 conference held within the month, and join hands with game developer Zynga to enter the online dating market.With the approaching of the f8 conference, many new products and functions to be released by Facebook have been exposed by various media before, but Facebook Relationship may be the most am

1、 Generation of static electricity:1. Friction: In daily life, any two objects made of different materials can generate static electricity after contact and separation. The most common way to generate static electricity is to generate electricity by friction. The better the insulation of materials, the easier it is to use friction to generate electricity. In addition, static electricity can also be generated when objects of any two different substances are separated after contact.2. Induction: