Baghdad Battery
250 BCE – 640 CE
A 2,000-year-old clay vessel containing a copper cylinder and iron rod that, when filled with an acidic solution, produces a small electric current. Discovered near Baghdad in 1936, it remains one of the most controversial artifacts in the history of technology.
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Baghdad Battery Revisited
250 BCE – 640 CE
The Baghdad Battery — a 2,000-year-old clay jar containing a copper cylinder and iron rod — produces 1.1 volts when filled with acidic liquid, raising the extraordinary possibility of ancient electroplating or galvanic technology.
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