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 ...

(Nanowerk News) 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 ...

Recently, I talked about how using your old Android phone as a security camera isn't the best approach for repurposing it, and discussed the possibility of using it as a smart home remote of sorts.

[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 ...

Cars piloted by human drivers have windshield wipers and washers to help ensure the driver can see ahead. In particularly severe weather, the driver is expected to scrape snow and ice from the glass, ...