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.

Ultrasonic espresso brewed at room temperature matched traditional shots in blind taste tests while cutting energy use by 75%.

Ultrasonic espresso’ made with cold water and high-frequency sound waves uses less energy than the traditional version – and taste tests show it’s just as good.

The famous cup of strong espresso, a symbol of waking up for millions of people, could soon change its recipe. Australian researchers have succeeded in reproducing a perfectly authentic ...

Apple could use ultrasonic sound waves to deliver haptic feedback to wearers of its upcoming AR/VR headset when they interact with virtual objects. Most consumer AR/VR headsets do not provide haptic ...