AI-powered portable sensor enables rapid and multiplexed cardiac biomarker testing

Cardiovascular diseases remain the leading cause of death worldwide, accounting for nearly 20 million deaths each year. Rapid ...

Oxygen sensing helps explain why amphibians regenerate limbs but mammals cannot

Some animals can regrow lost body parts. Salamanders and frog tadpoles can rebuild entire limbs after amputation. Mammals ...

DJI's ultra-popular beginner drone with 4k video is back to its lowest ever price at a major UK retailer

DJI is rumoured to be working on the successor to one of its more popular beginner drones, the Mini 4K, which might explain ...

How I check, test, and charge my AA and AAA batteries - and sift out defective ones

I've been a fan of Olight flashlights for many years. Now I'm a fan of its new pro-grade battery charger. Here's why.

I walked 3,000 steps with my Apple Watch, Google Pixel, and Oura Ring - this tracker was most accurate

Just how accurate is that smartwatch or smart ring? I tested three health trackers' step counters to find out.
Verywell Health

5 Ways Fitness Trackers Can Catch Early Signs of Health Issues as You Age

Some fitness trackers may detect signs of heart disease, sleep problems, and chronic stress. However, there are limitations and risks to consider.
C&EN

Data discovered in surprising places

In most people, carbon dioxide and hydrogen—not methane, Hall stresses—make up the bulk of farts. All that hydrogen comes from microbes breaking down beans, greens, and other gassy foods. “If you see ...