Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

If you regularly stream music via Spotify but don't know all the app's features, you're missing out. With a few simple tricks ...

The SJCAM C400 is a 4K pocket camcorder with a 7-hour battery life, 6-axis stabilization plus a 2.29-inch touch screen in a ...

NAD launches the C 3030 and C 3030S integrated amplifiers, blending vintage design with modern features, priced from $1,199 to $1,499.

Physically, sound is just pressure moving through a medium. If you harness that pressure correctly, you can actually push things around using nothing but sound. That's exactly what researchers at ...

WASHINGTON, Dec. 16, 2025 — Helium leaks are hard to detect. Helium is odorless, colorless, tasteless, and does not react with other chemical substances. Not only can we not see or smell it, but ...

Editor’s note: This column was produced before Gene Wengert died in 2025. It is printed here in memoriam. Q How deep should needles go in rough or planed lumber using a pin moisture meter? Insulated ...

Massive stones, no machines, and echoes of a lost science—did ancient builders use sound to lift the impossible? From Giza to Nan Madol, the clues point to acoustic levitation as more than just myth.

Google Drive gets a new AI audio summaries feature, where Gemini can turn your lengthy documents into short audio summaries. Google says the summaries can range from two to ten minutes, depending on ...

If you've ever found yourself pulling out your phone or tablet to watch a movie on a long plane ride with a friend or partner, you've probably wished for a more streamlined way to connect multiple ...