9 years ago
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This Battery Has Lasted 175 Years and No One Knows How
There sits, in the Clarendon Laboratory at Oxford University, a bell that has been ringing, nonstop, for at least 175 years. It's powered by a single battery that was installed in 1840. Researchers would love to know what the battery is made of, but they are afraid that opening the bell would ruin an experiment to see how long it will last. The bell’s clapper oscillates back and forth constantly and quickly, meaning the Oxford Electric Bell, as it’s called...
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There has got to be a renewable element effecting the charge of these batteries. Too bad they won't take them apart to see what is going on.