Oxygen sensors detect the amount of oxygen in the exhaust. Oxygen sensors usually don’t have a replacement schedule. A bad oxygen sensor can be diagnosed with a code reader or scan tool. A car’s ...

A vehicle’s Check Engine light can turn any car ride into a harrowing experience. As soon as the check engine light illuminates, it’s hard not to hear the cha-ching sound of a ...

On older vehicles and smaller engines, the carburetor controls the mixture of fuel and air that reaches the engine. Here's ...

For two days, the patient lived as a human being with no lungs, stabilized by a machine that breathed and buffered his ...

In other words, by not changing your air purifier’s filter, you’re creating the opposite effect. All the allergens, viruses, ...

Humans can't live without lungs, but Ankit Bharat's patient did for 48 hours.

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 ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

Supplemental Instruction is an academic assistance program providing regularly scheduled out-of-class, peer-led study sessions for challenging courses. The free sessions, open to all students in ...