Hello, this is NUARL.There isn't a day that goes by where you don't see the term "high sound quality" in advertisements for ...

Introduction Have you ever tried making “walkie-talkies” using a long piece of string and two tin cans? If you have, you know that they work surprisingly well—at longer distances you can hear people ...

Black holes famously trap light. A new acoustic device borrows the idea to swallow sound. (Yukterez/Wikimedia Commons, CC BY-SA 4.0) Sound can be a tricksy beast to try to harness. It fills the world ...

High school science teacher Sam Terfa wanted to demonstrate a fundamental physics principle: resonant frequency. To do so, he found the best singer at Minnehaha Academy and had him serenade a wine ...