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Galton’s Whistle
Galton’s Whistle

Galton’s Whistle
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530
470111-248EA 33.44 USD
470111-248
Galton’s Whistle
Determine the Highest Frequency of Audible Sound

This whistle can help you determine the highest frequency of sound a listener can hear, a value that decreases with age. The adjustable whistle produces mostly frequencies inaudible to us. Lowering the pitch brings the sound into most people’s audible range.
   
 

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