A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

The materials are expected to amplify the source levels for active sonars and heightened sensitivity for passive sonars.

Found in everything from kitchen appliances to sustainable energy infrastructure, stainless steels are used extensively due ...

Ultrasonic or ultrasound cavitation is the use of ultrasound technology to break down fat cells below the skin. It is a non-surgical method of reducing cellulite and localized fat. This ...

Today, the only way to assess intracranial pressure is to insert a sensor into the patient’s brain, so Crainio’s non-invasive technique could revolutionize how brain injuries are diagnosed and treated ...

Outdoors, you can’t always stay safe, since dust particles, allergens, and poor air quality are everywhere. But at least indoors, you have the power to protect yourself and your family.

Russian sensors suspected of attempting to spy on British nuclear submarines have reportedly been discovered hidden in the waters around the UK, raising potential national security threat. According ...

Florida TaxWatch recommended lawmakers require sensors that detect fatigue, sinking, leaks and stress to help prevent disasters like Champlain Towers. TALLAHASSEE, Fla. — Lawmakers should mandate ...

This week, Nikon announced the Z5II, its entry-level full-frame camera. It uses a 24MP BSI sensor we've seen in plenty of other cameras, such as the Zf and Z6 II, but that's not a complaint – in the ...

The Hall Effect is an important concept in physics and engineering, and it has many applications in sensors, switches, transducers, and devices. Analog sticks use potentiometers, which are devices ...

After dealing with years of widespread reports of "stick drift" on the original Switch Joy-Cons, Nintendo watchers have been hoping the Switch 2 would make use of magnetic Hall effect sensors that ...

Russian spy sensors targeting Royal Navy submarines were found hidden in waters around the UK, prompting an expansion of Royal Navy surveillance. The British military found several of the devices ...