In 1878 and 1879, both Englishman Sir Joseph Swan and American Thomas Edison were able to create lighting device, called a light bulb. Both light bulbs of the mid 1800s were effective enough then that the structure of the light bulb has not changed much. A glass light bulb will contain several parts in order...
Category: Electrical Insulators
Science Class: Electrical Insulators
Do you recall being in a science class and learning about electricity? Just the thought of electricity made many nervous, while others were intrigued. The teacher then brought out wires, batteries, light bulbs, and wire cutters. This lesson taught us about electrical currents, which was demonstrated by connecting the now stripped wires to the...