Sunday, 26 May 2013

The Baghdad Batteries

The Baghdad Batteries are a series of artefacts found in the area of Mesopotamia dating from the early centuries AD. When archaeologists stumbled upon the batteries, they assumed they were just regular clay pots for storage, but soon realised that was incorrect as each pot contained a copper rod that shows evidence of acid corrosion. This, theoretically means that these pots contained a liquid that interacted with the copper, produced an electrical charge, and therefore makes these the first batteries known to man. 
The problem is, what were the batteries used for? Some believe the batteries were used to power the "Dendera Light", an electrical arc of light. Others believe that they were used to electroplate items with gold, and some even say they were used medically to shock people. It remains a mystery; despite decades of experiments and discussion, no one is really sure what these pots were used for. 
I have found a great article if you are interested in reading into this some more: http://news.bbc.co.uk/1/hi/sci/tech/2804257.stm