(Cultures dating as far back as 2,750 BC made written mention of electricity, although only regarding electricity that occurs naturally.Voltas early Voltaic pile battery consisted of copper and zinc rods separated by pieces of cloth soaked in brine.
This theory is supported by the fact that the iron rods discovered inside the earthenware jars do in fact show evidence of acidic corrosion, perhaps having been submerged in vinegar. Gray of the General Electric High Voltage Laboratory in Pittsfield, MA.
Konig suggested that when the iron rods were inserted into the copper cylinders, fitted into the jars mouths with asphalt stoppers, and the jars were filled with vinegar, the resulting cells were in fact capable of producing an electrical current. Making an exact replica of the devices unearthed at Khujut Rabu and using a copper sulfite solution, Gray generated a half a volt of electricity.
Later experiments using grape juice and vinegar produced similar results.
This strange group of objects, not given any special attention, found its way into the collection of the National Museum of Iraq.
It was not until several years later that Wilhelm Konig, the museums director, came across these jars and pieces of metal and, upon analyzing them, drew a startling conclusion.
In 1940 Konig published a paper contending that when the pieces of these artifacts were fitted together correctly and the jars were filled with an acidic solution, they formed functional electrochemical cells capable of generating electricity.While modern historians attribute the invention of the battery to Italian physicist Alessandro Volta in 1800, Volta may have simply recreated a 2,000 year-old lost technology.Welcome to the Mind Body Spirit Group Unexplained Phenomena Community.Unexplained phenomena are things that we just don't understand.In the mid 1930s a series of curious objects, believed to date from the 3rd century BC, were unearthed in Khujut Rabu, near Baghdad.These earthenware jars, measuring about 5 inches high, contained copper cylinders and iron rods.