Bootstrap Business explains how much noise a sound barrier can really block. What to know about barriers blocking sounds on ...

But that’s the case with Penn­DOT’s Highland Park Interchange Project for which locally based, award-winning artist Brian Peters designed unique sound barrier walls. The wavy design is ...

In stunning images, NASA has revealed the moment an experimental supersonic aircraft broke the sound barrier without ...

Boom Supersonic's XB-1 has successfully broken the sound barrier, becoming the first supersonic ... "So we've got our litmus test here today, our proof data that we'll use to inform our future ...