Thunder is the acoustic shock wave from the extreme heat of a lightning flash. The latest edition of Science Behind the ...

New architecture could be used to create tailored devices that emit or receive only certain frequencies of sound ...

A novel radar sensing system for non-contact and continuous detection of heart sound is proposed in this paper, which is a custom designed 120 GHz interferometric radar. The moving trajectory of the ...

How Do Hearing Aids Work? Hearing aids work by amplifying sound through a three-part system: The microphone receives sound and converts it into a digital signal. The amplifier increases the strength ...

The XenboX concept began taking shape in the early aughts when Gordon walked into a Boulder, Colorado, new-age shop and discovered a biofeedback device that clocked his brain’s electrical activity and ...