Silentek offers new ultrasonic jammer which outperforms all other units tested. The UJ-20000 proved effective against all devices tested, including iphones. USA ...

From factory automation to healthcare, ultrasonic sensors enable precise monitoring of distance, depth, and fluid levels.

Floating world: a 3D globe created by the University of Sussex display. (Courtesy: Eimontas Jankauskis) An ultrasound-powered, 3D visual display that can also produce audible sound and holograms that ...

Humans can observe what and where something happens around them with their hearing, as long as sound frequencies lie between 20 Hz and 20 000 Hz. Researchers have now developed a new audio technique ...

One physiological consequence of cancer and other diseases spreading throughout the body can be the hardening of the structure surrounding cells called the extracellular matrix. Scientists at Purdue ...

You can prevent facial recognition cameras from identifying you by wearing face paint, masks, or sometimes just a pair of oversized sunglasses. Keeping conversations private from an ever-growing ...

In-display fingerprint scanners on smartphones have been around for a few years now. Ultrasonic and optical scanners are two technologies with both serving the same purpose of biometric authentication ...

Ultrasonic toothbrushes could be the key to a novel, highly efficient battery recycling method. New research from the U.K.'s Faraday Institution has suggested ultrasonic delamination could offer a ...