When you’re testing or debugging some mains-powered gear, plugging it directly into the outlet can often be an exciting ...

Routine electrical checks are usually sold as a safety chore, but the financial stakes are just as real. In my case, a five ...

When a circuit is pushed past its limits, it rarely fails politely. It signals trouble through tripped breakers, hot outlets, and flickering lights, and if you miss those early warnings, the result ...

For switching high-powered loads from a microcontroller, or for switching AC loads in general, most of us will reach into the ...

You might already know that JBL doesn't just do wireless speakers and earbuds; they're also a big name in live audio. The ...

Health and Human Services Secretary Robert F Kennedy Jr. said this weekend that he is working across the government to end all federally funded animal testing. "All the major agency heads are ...

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

Cut, tighten, loosen, open, and twist your way through whatever challenges crop up.

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

If you have trouble breathing, your doctor may recommend a few tests to figure out what’s causing it. Some measure how much air you breathe in or out or how much oxygen is going from your lungs to the ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...

The Neoteck 3-in-1 pen multimeter is a great choice for DIYers and amateur tinkerers, especially at its price.