The fire concerns come amid heightened scrutiny of e-bike battery safety. A Seattle Fire Dept. official offered insights on ...

This simple charger and capacity tester, which is built around two inexpensive and widely available modules, provides an ...

I tried limited viral edible diy foods in this Edible diy Foods vs Cavities Challenge! Join my adventure and let’s discover ...

You can salvage lithium 18650 cells from all sorts of modern gadgets, from disposable vapes to cordless power tools. The tricky part, other than physically liberating ...

Toothbrush vs Cavities Challenge! In this video, I test two of the craziest lego toothbrush builds ever made — the world’s ...

A father-son team reclaimed the Guinness World Record for fastest quadcopter after their 3D-printed drone hit 408 miles per ...

To make things more interesting, those extra batteries don’t just sit there passively. The team engineered a bespoke BMS ...

(Editor’s Note: This is a section from Popular Science’s 38th annual Best of What’s New awards. Be sure to read the full list ...

In this project, I built a wearable health monitoring tag that you can actually chat with on Telegram. Using a pulse oximeter ...

Amazon Basics tools that are worth buying include the hex key set and 10-in-1 multitool, and one to avoid is its 100-piece ...

The 2026 CES parade of giant TVs and AI robots didn’t disappoint — but it’s the practical, useful gadgets that truly stole ...