In 1936, during excavations in Rabu Kujut a hill, a village southeast of Bagad, workers in the Iraqi State Railway Department discovered an ancient tomb over 2000 years covered with a slab of stone, inside which they found, among other things, some very unique containers clay vase-shaped, yellow clear. Inside was a copper cylinder attached to the mouth of the neck. Inside the cylinder was an iron bar. The German archaeologist Wilhelm König, then in charge of the Laboratory of the State Museum of Baghdad, identified as a probable electric battery. Interposed between the copper and iron electrolyte this device may cause a potential of approximately one volt and a half. In the video could be seen as working with grape juice as an electrolyte. Some also speculate that it could be used to brown or electro plating jewelry.
Skeptics deny that they have been used as batteries and has not been found any other electrolyte can not even trace amounts. Also the electrolytic bath would be very slow as to achieve a deposition of about 10 grams of silver would be required at least 7 working days of the alleged battery in optimum condition. Moreover, any acid electrolyte has ended up breaking the iron rod in one or two years.
currently unknown whereabouts of these objects that disappeared from the State Museum of Baghdad during the looting that took place in 2003 during the Gulf War II.
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