The 2000 Year Old Battery

#History

Fri, Jul 30th, 2010 20:00 by capnasty NEWS

Fascinating read on what could possibly be the world's oldest battery:

In 1936, while excavating ruins of a 2000-year-old village near Baghdad, workers discovered mysterious small vase. A 6-inch-high pot of bright yellow clay dating back two millennia contained a cylinder of sheet-copper 5 inches by 1.5 inches. The edge of the copper cylinder was soldered with a 60-40 lead-tin alloy comparable to today's solder. The bottom of the cylinder was capped with a crimped-in copper disk and sealed with bitumen or asphalt. Another insulating layer of asphalt sealed the top and also held in place an iron rod suspended into the centre of the copper cylinder. The rod showed evidence of having been corroded with an acidic agent.

German archaeologist, Wilhelm König, examined the object and came to a surprising conclusion that the clay pot was nothing less than an ancient electric battery.

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