We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxemia) give ...

CES attendees saw health-tracking gadgets making bold promises: toothbrushes detecting diabetes, mirrors assessing 20-year ...

The winter conditions that Afghanistan is experiencing have turned life-threatening. Instead, relief from drought could have been what this country ...

Abstract: In the early 1940s, electromagnetic (EM) waves in the RF and microwave frequency range were used to transmit messages between New York and Philadelphia [1]. Telecom operators and ...