In the iconic "Sound of Music" score, "My Favorite Things," a young Julie Andrews lists snowflakes as objects that bring her joy. While some people would rather avoid snowflakes and the slippery roads ...

Oxygen is the second most abundant element in Earth's atmosphere. Although critical for aerobic respiration, it also poses significant dangers to life. The reduction of molecular oxygen to water by ...

Ready to beef up your Wi-Fi network? A wireless range extender is a less expensive alternative to a new router. (Some can even turn your router setup into a mesh system.) Here are the top performers ...

Electric vehicles have been around for some time now and are often touted as the future of transportation. Yet despite their promise, adoption remains hampered by two persistent challenges: range ...

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 ...

Working from home by day, gaming and streaming by night? Defeating Wi-Fi dead zones is more important than ever. A mesh network system can help, and these are the best we've tested. I’ve been working ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...