What we breathe out becomes fuel for forests. But inside our own bodies, CO₂ has a secret life. It sparks chemical reactions, shapes metabolism, and may even act as a signaling molecule—and a new tool ...

For adults with asthma, having fans, air purifiers or other ventilation and exhaust systems—especially in kitchens and bathrooms—is one of the best ways to reduce the risk of flare-ups at home.

Tennessee woke up to a deep freeze on Jan. 26 in the wake of a brutal winter storm. Melting snow and ice can create "ice dams" that build on the edges of your roof. Here are some tips for removing ...

Drew McIntyre will proudly wear his WWE Championship belt on British ground on Friday night. WWE SmackDown is heading to London, where Scotland's McIntyre can show off the title he claimed last week.

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

If the wind, rain and snow are somewhat getting you down, it’s possible that the phone in your pocket could help you relieve some of the January blues. If you are an O2 customer, you have automatic ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

This all-purpose presence sensor is a master at monitoring indoor activity and linking it to smart home features you already use. Tyler has worked on, lived with and tested all types of smart home and ...

We may receive a commission on purchases made from links. While it may seem intimidating at first, there are plenty of easy DIY auto maintenance projects that even the most novice DIY-er can handle.

Marshall Gunnell is a Tokyo-based tech journalist and editor with over a decade of experience covering IT, cybersecurity and data storage. Alongside CNET, his work has appeared in ZDNET, Business ...

The exhaust tips – including the fake exhaust tips found on many newer vehicles — are often neglected after a car wash because they are not in the line of sight and can be hard to reach. They get ...

To make the iPhone as capable as it is, Apple equipped it with several sensors. One of these is the LiDAR scanner. LiDAR — short for Light Detection and Ranging — is a sensor that essentially measures ...