The Baghdad Battery is believed to be about 2000 years old…

The Baghdad Battery is believed to be about 2000 years old clay jar with a stopper made of asphalt. Sticking through the asphalt is an iron rod surrounded by a copper cylinder. When filled with vinegar – or other electrolytic solution – the jar produces about 1.1 volts. source

image via mixedmartialarts

Source: Weird Facts
Interesting Facts

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