We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Kathryn Rath Kathryn Rath is a writer covering audio, video, and smart-home ...

Local-first wins.

In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Even if you’ve let your hydration habits slip (or you never glugged a ton of water in the first place), it’s never too late to get back on track and set yourself up to reap the health benefits of ...

Conventional wireless sensors typically rely on dielectric capacitors with inherently low capacitance, requiring operation at MHz frequencies. Here, the authors develop a wireless low-frequency ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. Eric's career includes extensive work in both public and corporate ...

Chelsea Rae Bourgeois is a health writer and registered dietitian nutritionist with over eight years of experience in the clinical setting. Her writing covers nutrition and overall health topics, ...

Eating hydrating foods and reducing salt intake can help reduce excess water weight. Poor circulation, certain medications, pregnancy, and menstruation can cause water weight gain. Sometimes, swelling ...

Researchers have found an unusual 3D printable material that generates electricity in flowing water. The researchers found ...