Monday, June 11, 2007

The Baghdad Batteries

The earliest known artifacts that may have served as batteries are the Baghdad Batteries, which existed some time between 250 BC and 640 AD. However, it is not known what electrical function they may have served, and if they were in fact batteries at all. Modern batteries provide accurate power source until they drop dead in one second and my daughter is definitely seems to be working on modern ones. It was a hard day at work so she fell asleep early at 21:30.

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