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“The walls have ears,” as the saying goes when people tell hushed secrets behind closed doors. Surprisingly, sometimes the walls whisper back. A whispering wall is an architectural structure designed for optimal acoustic range. Words softly whispered by someone at on end are clearly heard by someone at the other end, perhaps a hundred yards distant. In this project you will explore the acoustical wonders of whispering walls, and build your own whispering wall model.
It is an educational content by education.com.
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Fecha publicaci?n: 12.5.2016
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