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

One thing most coffee lovers agree on is that good espresso starts with hot water. A team of researchers in Australia is ...

A research team at City University of Hong Kong (CityU) has discovered a new type of sound wave: the airborne sound wave vibrates transversely and carries both rotation and orbital angular momentum ...

Sound waves travel through different types of matter, including liquid water. Importantly, the movement of ocean water can greatly affect how sound waves travel from one point to another. Mesoscale ...