IR sensors rely on an emitter (IR LED) and a detector (photodiode or photoresistor) to measure infrared light and convert it ...

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

Could Luna beat Oura at the smart ring game?

Nano-sensors that work without batteries or wires could pave the way for more comfortable, less obtrusive sleep and health ...

Piezofluorochromism, the phenomenon of materials reversibly changing their fluorescent color when pressure is applied, is ...

The light-sensitive tissue of birds’ eyes is not supplied with oxygen by blood vessels – instead, it powers itself with a ...

A new lens-free imaging system uses software to see finer details from farther away than optical systems ever could before.

We've rounded up the best astro cameras — these models are tried and tested by our experts to help you decide what to invest in. When you purchase through links on our site, we may earn an affiliate ...

Journaling for just a few minutes every day can help turn it into a stress-relieving, sustainable habit. It may help to write at the same time each day or use prompts for fresh ideas. One of your best ...

Cardiac device therapy has significantly evolved since the introduction of the first implantable pacemaker and the subsequent ...