Eons before alert systems and even highways, motorists used a myriad of signaling choices including bells, whistles, chimes, buzzers and hand-squeezed horns, all competing with the sound of horse’s ...

It’s not just ex-NASA engineers who are trying to develop easier-on-the-ear car horns. Researchers in South Korea, too, have been working on creating the ideal honking sound that isn’t as grating as ...

Sound permeates the human experience and gets our attention, sometimes traumatically so. Consider the car horn. It is a widespread practical application of this noise-trauma-alert principle -- and an ...