Near Space

摘要

The study of electrostatics was our first step in the field of electronics. In electrostatics, electric charges are relatively stationary. So, the natural philosophers (early scientists) who studied the phenomenon of electrostatics concentrated primarily on the creation, storage, and interaction between the two types of electric charges. One of their tools was the electroscope, a device consisting of two metal foil leaves draped over a metal rod and protected within a glass jar.