Concrete structures like roads and bridges require nondestructive testing methods to identify interior defects without destroying their structure. Most methods send sound waves into the material and ...

NASA’s assessment of PlanetiQ datasets lauded the precision of PlanetiQ’s total electron content observations as “best-in-class,” citing high signal-to-noise ratio and deep penetration in the lower ...

Vertical graphene microstructures break the thickness-performance tradeoff in thermoacoustic speakers, enabling flexible ...

Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

Opera has always lived at the crossroads of emotion and discipline. A single performance can shape a singer’s future, opening ...