Discover how to build a simple DIY Stirling engine powered by heat from candles using an empty spray can and pen components.

Explore how a basic LED can be used as a tiny solar cell, generating measurable voltage under sunlight. This hands-on ...

In the visions of researchers at the University of Oulu, light does far more than illuminate. It provides, among others, a ...

Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

A series where we find out which products the professionals (who really know what they’re talking about) actually use and really stand behind. Read more here. Maybe you’ve seen an influencer gliding ...

A nurse practitioner-led rapid-access clinic for patients with inflammatory bowel disease (IBD) at high risk for acute care use reduced both emergency department visits and hospitalization rates. The ...

Should you spend some time around the less scientifically informed parts of the internet, it’s easy to find “Free power” stories. Usually they’re some form of perpetual ...