Even if you're not a pro or DIY mechanic, you know an engine idle ticking sound is a cause for concern. As a long time ...

Electric vehicles are notoriously quiet. You might think near silent operation would be a universally agreed upon good thing, but when the internal combustion engine is removed from the equation, a ...

A breakthrough study has revealed why emerging electric aircraft engine technology sounds so annoying -- and how to fix it. A breakthrough study has revealed why emerging electric aircraft engine ...