Let’s say you want to blink an LED. You might grab an Arduino and run the Blink sketch, or you might lace up a few components to a 555. But you needn’t go so fancy! [The Design Graveyard] explains how ...

In this captivating video, discover how to create a free energy solar cell using LEDs and transistors. We guide you step by ...

All the info you need right here ✦ In this occasion I'll make a lighting system to be controlled remotely from my rc using ...

While LED masks have become a more common part of many people’s skincare routines, some confusion still exists over what products to use alongside them to get the best results. The right, potent ...

One of the joys of writing up the entries for the 2025 Component Abuse Challenge has come in finding all the different alternative uses for the humble transistor. This building block of all modern ...

A ray of light may be key to fighting cancer. Researchers with the University of Texas and University of Porto in Portugal ...

A new cancer treatment combines LED light and tiny tin flakes to neutralize cancer cells while shielding healthy cells and avoiding the painful side effects associated with chemotherapy and other ...

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 ...

Light triggers atomic shifts in asymmetric 2D semiconductors, tuning their optical response. This enables compact, energy-efficient photonic chips and sensitive sensors.

To say the at-home beauty tech market is growing would be an understatement. With convenience and cost acting as key motivators, consumers are looking to replicate the in-clinic experience from the ...

I am the beauty and fashion commerce writer. I’m not entirely sure when my skin switched over from springy and glowy to creased, splotchy and tired, but I’m officially there. As a result, I live in ...