Tony Goacher] has worked with a lot of cheap brushless DC motor controllers built in China. They can be very cost-effective, ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

A cinematic obsessive with the filmic palate of a starving raccoon, Rob London will watch pretty much anything once. With a mind like a steel trap, he's an endless fount of movie and TV trivia, borne ...

Erin Bendig has extensive experience in various areas of personal finance. She previously worked as a staff writer for Kiplinger.com, focusing primarily on savings accounts and banking. In addition, ...

See those dome cameras at the grocery store? Those aren’t just for shoplifters. Those run AI that tracks every step you take, every pause you make to figure out what you want to buy. Yes, it’s ...

Organizers want the July 4 fireworks in the nation’s capital to break the world record. But the fun will also come with air pollution and possibly headaches for pet owners and zoo keepers. By Quinn ...

When you receive your credit card bill, you'll notice two different balances: the statement balance and the current balance. Conventional wisdom says that you should always pay off your statement ...

Abstract: This article presents a robust design of a megawatt-scale medium-voltage (MV) direct current transformer (DCT) that features a bidirectional LLC resonant converter topology. This topology ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

ESP32s are surprisingly good AI lie detectors.

July 3, 2026 Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds up and acts like a brake, slowing the cells’ ...

J.B. Maverick is an active trader, commodity futures broker, and stock market analyst 17+ years of experience, in addition to 10+ years of experience as a finance writer and book editor. Ariel Courage ...