A3
The history of batteries really shocked me when I learned how long they have been around for. I had always believed that electricity hasn't even been invented or properly used by humans until the late 1800's when Thomas Edison began experimenting with it. However, scientists have discovered that the presence of batteries dates back long before then. In 1936, workers discovered an ancient battery in the ground while building a railroad near Baghdad, Iraq. The battery, known as a Parthian battery, is the earliest known battery known to man. The battery consisted of just a clay container, with an iron rod wrapped in a copper cylinder inside, and filled with an electrolyte solution (vinegar). The prehistoric device merely produced approximately 1.1 to 2.0 volts of electricity, but that is still very impressive considering that they are estimated to be over 4,300 years old. In the mid 1700's , humans began experimenting with electricity again, as scientist Ewald Georg von...