Highway walls use the same wave physics as submarine stealth technology
Modern highway noise barriers use advanced wave diffraction and absorption techniques identical to submarine stealth technology to create silent 'shadow zones' for nearby neighborhoods and environments.
The massive walls lining busy highways do much more than just block the view; they manipulate sound waves using the same principles that hide submarines from sonar. By applying Kirchhoff's diffraction theory, engineers design these barriers to bend sound waves over the top edge, specifically targeting the 500 to 2000 Hz frequencies produced by heavy traffic.
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