Hz infrasound, though inaudible, spikes cortisol and triggers irritability, explaining "supernatural" feelings in old buildings.

EPFL researchers have developed a 100% effective, ultra-thin active noise cancelling system that uses an ionized air plasma propulsion system instead of speakers. A 17-mm-thick (0.6-in) layer can ...

The Rohde & Schwarz FSU67 spectrum analyzer covers the 20-Hz-to-67-GHz frequency range in one full-span sweep with a single coaxial input without the need for external harmonic mixers. The FSU67 also ...

When tech gets stale, one thing the industry does to try to get shoppers excited about new products is offer bigger and better specs. In 2021, a lot of focus went into beefing up the speed specs, ...