A bell has been ringing at Oxford for nearly two hundred years. Because no one is willing to stop the bell, and the demonstration that it represents, no one knows the exact mechanism that's making it ring. Learn of the mysteries of the Oxford Electric Bell.
The Oxford Electric Bell works using the same basic principle as Franklin's Bells - the lightning alarm credited to, but not invented by, Benjamin Franklin. Because it's hooked up to early versions of batteries, and not dependent on the weather, the Oxford Bell works more reliably. If anything, it works too reliably, as it has been continuously ringing since 1840. A tiny metal bead is wedged between metal bells attached to two of the world's earliest version of batteries. The bead hits one bell, and the battery discharges a tiny portion of its charge - let's say electrons - into the bead. The bead, having acquired a negative charge, is repelled by the negatively charged battery and bell. It zooms away, hitting the other battery. There it empties its charge, takes on the same charge as the battery, and zooms back. At each hit it rings.