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Boston University mechanical engineers have created synthetic, sound-silencing structures—acoustic metamaterials—that can block 94% of sounds. Reza Ghaffarivardavagh (ENG) (front center) holds two of the open, ringlike structures over his ears while Stephan Anderson (MED) (left), Xin Zhang (ENG) (rear center), and Jacob Nikolajczyk (ENG) (right) make a racket. Photo by Cydney Scott

Engineers have created a shape that blocks all sound

We live in a loud world. Every moment of our day is likely filled with some sort of sound — some pleasant, some that...
How the brain hears and fears?

How the brain hears and fears?

Music has the potential to immensely affecting and alter the moods, actions, and decisions of people. Not only for humans, but also for animals, music...
Innovative technology: Sharing Data Via Sound

Innovative technology: Sharing Data Via Sound

People generally rely on Bluetooth, Wi-Fi and optical fibers data transmission methods. Although, all become important suspects. So, developers have begun to explore innovative...

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