A Timeless Ring
The Oxford Electric Bell, created in 1840, has rung continuously for nearly 180 years. Positioned at the University of Oxford, this experimental bell uses electrostatic forces to ring back and forth between two bells, powered by dry piles, an early form of battery.
Ingenious Design
The setup includes two brass bells charged by dry piles. A small metal clapper oscillates between the bells, creating a half-second interval of ringing. Due to the high voltage but tiny charge, the battery drains extremely slowly, allowing it to function for over a century.
Scientific Importance
Originally purchased by physicist Robert Walker, the bell was part of experiments distinguishing between electrostatic theories. It became a crucial tool in understanding electrical actions, though the exact composition of the dry piles remains unknown.
World Record
Despite occasional interruptions due to humidity, the Oxford Electric Bell holds the Guinness World Record for the “world’s most durable battery,” with around 10 billion rings since its creation. It remains an iconic symbol of enduring scientific curiosity.
The Oxford Electric Bell, created in 1840, has rung continuously for nearly 180 years. Positioned at the University of Oxford, this experimental bell uses electrostatic forces to ring back and forth between two bells, powered by dry piles, an early form of battery…🧵👇 pic.twitter.com/20Ih6HEp9n
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