Apple, Garmin, Samsung, Google or Amazfit? I compared each one against a chest strap for heart rate accuracy and found a ...

Hydrogen is set to play a key role in the global energy transition. But for hydrogen technologies to be deployed safely and ...

Whether for drug screening or toxicity testing, stem cell-based 3D tissue models are key to biomedical research. However, producing cell aggregates in bioreactors is highly complex and cost-intensive.

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.

For electrical engineers working in almost any part of the wired or wireless spectrum, the spectrum analyzer is a critical test and measurement tool. For optical engineering, the equivalent tool is ...

The Gen III TacIRST distributed infrared threat‑warning system will equip the F-22 Raptor, with an evaluation planned in 2026. Lockheed Martin has announced the first flight of the latest iteration of ...

Among the many problems with the flu is the fact that you can spread the virus before you even know you've got it. An experimental new "sensor" could one day keep you from doing so, by causing you to ...

Flu season is fast approaching in the northern hemisphere. And a taste-based influenza test could someday have you swapping nasal swabs for chewing gum. A new molecular sensor has been designed to ...

For heart rate testing, Horst used a Polar H10 chest strap as the benchmark. The Apple Watch Ultra 2, running watchOS 26 beta, delivered results that were nearly identical to the strap during indoor ...