Sound canceling headphones and an acrylic wafer held between the teeth with a wire connected to a 78rpm turn-table device creates sound from the grooves with a neodymium magnet by placing a steel needle on the disc. Sound is transmitted by wire, vibrating the acrylic wafer, allowing sound to spread through bone. To bring the device to the coil, variable electromagentic fields vibrate the magnet transmitting this elastic vibration as sound from the wire to the teeth to the bone and the eardrum. – translated from the original
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