About 16 years ago, Ralph Harvey, an anesthesiology professor at the University of Tennessee's College of Veterinary Medicine, walked into an examination room where a small, white poodle sat atop an examination table. He noticed a high-pitched squeal resembling the sound that a capacitor in a camera flash makes when it's first turned on. Harvey traced it to the dog's ears. "It was truly phenomenal. I could use my stethoscope and listen to it quite clearly." The dog's ears were singing at 45.5 decibels (which is somewhere between a whisper and normal conversation) and around 9,500 Hz (J Am Vet Med Assoc, 198:1017-8, 1991).
Advertisement
Survey Series
For Advertisers
The singing ear
|
|||||||||
|
|||||||||
|
