“This jet of air carries energy, and that’s … the initial start of the sound,” says mechanical engineer Yicong Fu of Cornell University. The jet kicks off vibrations of the air. Fu and ...
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Kym Karath and Duane Chase, who played two of the von Trapp children, speak to PEOPLE about what Andrews was like on the set ...
A weak vibration makes a gentle sound wave which doesn't travel very far. Be quiet! A vibration with lots of energy makes a very powerful wave. The volume of a sound is how loud or quiet the sound is.
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