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Japan Technology Science

Pinholes and Plastic Wrap Make Solid Walls "Transparent" To Sound 127

First time accepted submitter benonemusic writes "Researchers have devised a means of making sound transmit easily through rigid surfaces, including walls. The process relies on creating small holes on a wall, and covering them on one side with a thin covering made from plastic wrap."
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Pinholes and Plastic Wrap Make Solid Walls "Transparent" To Sound

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