Tag Archives: Acoustics

Trapping Tiny Objects with Sound

Posted on October 28, 2025 by rberkowitz

Fluid flow and acoustic waves act together to trap nanoparticles. Continue reading →

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Sonar tool poised to map sea floor in fine detail

Posted on May 22, 2025 by rberkowitz

Researchers see promise in “synthetic aperture” devices that mimic giant acoustic cameras. Continue reading →

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Underwater Acoustics System Helps Baby Corals Thrive

Posted on November 20, 2024 by rberkowitz

Researchers built a sophisticated device to mimic natural soundscapes. Continue reading →

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Setting Temporal Boundaries for Sound Waves

Posted on August 16, 2024 by rberkowitz

A magnet-and-coil system reveals how acoustic waves reflect and refract when the host medium suddenly changes elasticity. Continue reading →

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How bats pick out their own calls when flying in enormous swarms

Posted on June 5, 2024 by rberkowitz

Researchers trained a hawk outfitted with microphones to fly through a swarm of 600,000 bats, revealing how they can hear their own voice in a crowd. Continue reading →

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Spider-Inspired Microphone Detects Tiny Gusts of Sound

Posted on May 30, 2024 by rberkowitz

A small device senses sounds using a spiderweb-like design—a strategy that could lead to chip-size microphones that are less affected by thermal noise. Continue reading →

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New Earplugs Won’t Amplify the Sound of Your Own Voice

Posted on May 29, 2024 by rberkowitz

Wearing earplugs, hearing aids and earphones can make your own voice sound booming, but a new design dampens the din. Continue reading →

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Seeking Solutions to Underwater Noise Pollution

Posted on March 1, 2024 by rberkowitz

Kamal Kesour conducts measurements to identify the sources of noise coming from ships passing through the St. Lawrence Estuary in Quebec, Canada, looking for ways to help crews reduce underwater noise. Continue reading →

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Making Alarms More Musical Can Save Lives

Posted on February 22, 2024 by rberkowitz

Medical alarms don’t have to be louder to be more effective. Continue reading →

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Ping-Pong Ball Insulators Can Block Noise

Posted on December 19, 2023 by rberkowitz

Researchers harness acoustics principles to seal out noise pollution. Continue reading →

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