Research reveals when and why ancient tropical seas transitioned from oxygen oases to marine dead zones, providing clues to ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard ...

Microscopic ocean algae produce a huge share of Earth’s oxygen—but they need iron to do it. New field research shows that ...

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

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

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

Earlier this year I was shocked to get a message from my phone network, O2. The messages suggested I had taken out six new mobile phone lines on my account and that six new direct debits had been set ...

O2 is the last network that still operates a 3G network, with the other UK mobile operators already having decommissioned their 3G service so they can re-deploy the spectrum to be used for 4G and 5G ...

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 ...