1. Volta invented the battery.
2. In 1799, the Italian physicist Volta dipped a zinc plate and a tin plate in salt water and discovered that an electric current ran through a wire connecting the two metals. So, he put a lot of zinc and silver between the sheets of flannelette or paper soaked in salt water, flat fold.
3. When touching both ends with your hand, you will feel strong current stimulation. In this way Volt succeeded in making the world's first battery, the "volt stack". This "volt stack" is essentially a series of battery packs. This became the source of power for the early experiments in electricity, the telegraph.
