Aaron Johnson is a speech and language pathologist at the Voice Center of New York University, in New York, New York.
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17:00
You Can Whistle While You Work—But How Does A Whistle Work?
Whistling requires attention to your mouth, muscles, and breath. Here’s how it works, and how to get better at it.
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6:38
The Science of Tuvan Throat Singing
Tuvan throat singers have developed a technique that allows them to produce two notes at one time.