Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Even though we have more sunlight during the day now, it’s still ...

Mobile network provider O2 has revealed it is granting all its Pay Monthly subscribers access to a more sophisticated tier of 5G connectivity, provided they possess a compatible handset. The company ...

A major announcement for mobile users in the UK has been made by Virgin Media O2. Many mobile phone users will soon be able to send texts from Britain's most isolated beauty spots – though it'll set ...

Chemists in South Korea have created a stable color-changing sensor that displays an easily quantifiable response to the pH of its surroundings. Published in Microsystems & Nanoengineering, Dong-Hwan ...

A food-safe gelatin microneedle sensor pierces sealed packaging and changes color as food spoils, offering consumers a real-time alternative to static expiry dates. (Nanowerk Spotlight) Open a package ...

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 ...

In an era when our wrists and fingers quietly log every heartbeat, step, and hour of sleep, personal health and wellness have never felt more within reach. Watches offer gentle nudges, rings trace ...

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 ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

The China Intelligence: What open sources tell us about Chinese forces, weapons, and strategy. The People's Liberation Army is building an “invisible net” across the western Pacific, a five-layer, ...

As the effects of climate change and ecological decline intensify, the need for accurate, scalable environmental monitoring has never been more urgent. From tracking urban air quality to safeguarding ...