บท 317: Blockbuster

In 1799, Idailian physicist Volt dipped a piece of zinc plate and a tin plate in saltwater and discovered that there was current flowing through the wires connecting the two metals. Therefore, he placed fluffed cloth or paper sheets soaked in saltwater between zinc sheets and silver sheets and stacked many of them together. A strong current stimulation could be felt when one's hands were placed on both ends. Using this method, Volt created the world's first battery; the "Voltaic pile."