When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

Measuring tiny differences in high-voltage circuits usually requires specialized differential test probes, which are often expensive. Fortunately, it’s possible to build your own high-voltage probe ...

Learn how to test a transformer: insulation resistance, TTR, winding resistance, polarity, continuity, and dielectric checks.

A sudden air conditioner failure during the peak of an Orange Beach, AL, summer is more than just an inconvenience; it is a ...

Occasionally a design requires capacitors that are much closer to being identical in value to one another than the usual ...

Radio experimenters often need a variable capacitor to tune their circuits, as the saying goes, for maximum smoke. In decades past these were readily available from almost any scrap radio, but the ...

By using something called a quantum grid, scientists have found a clever way to simultaneously measure momentum and position ...

Scientists are testing a novel blood-based method to detect Alzheimer’s disease by analyzing microvesicles that reveal how ...

Terms apply to American Express benefits and offers. Visit americanexpress.com to learn more. When you apply for a credit card, the issuer completes what is known as a hard inquiry, or hard pull, on ...

“Micromanagement” is a dirty word in today’s workplaces. Bosses who intervene too often or too extensively in their subordinates’ activities get a bad reputation, and most forward-thinking ...

How you can keep up with every NFL game, from the season opener to the 2026 Super Bowl. If you buy something through a link in this article, we may earn commission. Pricing and availability are ...

is a senior policy reporter at The Verge, covering the intersection of Silicon Valley and Capitol Hill. She spent 5 years covering tech policy at CNBC, writing about antitrust, privacy, and content ...