A Moment of Science
There's almost no difference between one person's vocal cords and another's, except that men generally have larger vocal cords than women.
It's pretty well established that education is important. But learning begins a lot earlier than you might think. "Fetus Learning" on this Moment of Science.
As a boy goes through adolescence, his secondary sex characteristics develop. One of these characteristics is the rapid growth of the larynx and vocal cords. A boy’s voice deepens as his larynx develops because the bigger the vocal cords, the deeper the voice.
On today’s Moment of Science, How Emotions Mature with Age. If you spend a lot of time with older folks, you may notice that their behavior is a bit calmer than that of the younger generation. Older people rarely go out and meet new people. And they almost never seem to get angry. Even when [...]
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