The battery at Oxford that has been running for nearly 180 years is called the “Oxford Electric Bell” and is located in the Clarendon Laboratory at the University of Oxford; it’s powered by a type of early battery called a “dry pile” and has been continuously ringing a small bell since 1840.
Key points about the Oxford Electric Bell:
Function:
A small bell continuously rings due to the electrostatic charge generated by the battery, causing a metal clapper to move back and forth between two bells.
Mystery of longevity:
Scientists aren’t entirely sure why this battery has lasted so long, but it’s likely due to the low power required to operate the bell and the design of the dry pile battery.
Historical significance:
Considered one of the longest-running science experiments, the bell is a testament to early battery technology.