For more evidence that scientific researchers are not only brilliant, but also insane, we turn to the cat-phone. In 1929 a pair of Princeton researchers, Ernest Wever and Charles Bray, hooked a live cat up to a telephone (after removing part of its skull and scooping out a good portion of its brain).
With an electrode attached to the auditory nerve, one researcher could speak into the cat’s ear and the other could hear the words, with remarkable clarity, through the attached telephone receiver. This wild experiment eventually led to the invention of cochlear implants.
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Photo Credits / Sources:
By Christos Vittoratos (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons