As someone who’s covered sleep for years on T3, I’ve tested many wellness apps, sleep trackers and alarms, all of which are ...

Researchers have developed a battery-free sensor that reacts to sound waves, such as particular spoken words, producing enough vibrational energy to power an electronic device. The novel sensor would ...

Researchers are developing a new type of sensor that reacts to certain sound waves, causing it to vibrate. The sensor is a metamaterial that acquires its special properties through the structuring of ...

Although the ability tends to wane as we get older, the human auditory system is pretty good at filtering out background noise and making a single voice able to be understood above the general hubbub ...

Apple is exploring the possibility of adding an ambient sound sensor to the iPhone that would allow the handset to adjust its ringtone volume to its surrounding audio environment, which would ...

My adventures of building a smart home on a shoestring budget are taking an interesting turn. It turns out that I don’t need to splurge on costly smart home devices. Thanks to my colleague Adam Conway ...

[Tobe] has an intervalometer for his camera, but he wanted a device that could trigger the shutter using several different methods, not just time. He calls his creation the Megavallometer, which can ...

Sensors that monitor infrastructure, such as bridges or buildings, or are used in medical devices, such as prostheses for the deaf, require a constant supply of power. The energy for this usually ...