Researchers have demonstrated they can make coffee comparable to conventional espresso using ultrasonic waves. Because the process doesn’t need hot water, it consumes 75 percent less energy. The ...

Stacey Leasca is an award-winning journalist with nearly two decades of newsroom experience. She is also the co-founder of Be a Travel Writer, an online course for the next generation of travel ...

Guardian journalism is independent. We earn a commission if you buy something through an affiliate link. Learn more. The C-200 vibrates 30,000 times per second, and as our pro chef tester found, it’s ...

I tried a techy new knife at CES 2026. Here's my take on whether this pricey blade is worthy of the hype. We’re tracking all the latest news out of CES, and one of the buzziest drops is a knife that, ...

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You brush your teeth, floss regularly and faithfully wear your retainer every night. But despite your diligent oral health habits, your retainer or mouth guard can get yellowed, cloudy or stained.

MIT engineers have created an ultrasonic device that rapidly frees water from materials designed to absorb moisture from the air. Instead of waiting hours for heat to evaporate the trapped water, the ...

Flaw detection is the most commonly used technique among all the applications of industrial ultrasonic testing. Generally, sound waves of high frequency are reflected from flaws and generate clear ...

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Rose Maura Lorre Rose Maura Lorre is a writer who has reported on turkey fryers, ...

Are you tired of earbuds? Are headphones too heavy? “Pockets” of audible sound in otherwise quiet spots may be on their way to help. In an era of podcasts and luxury sound systems, delivering audio on ...