Ultrasonic waves can help clean items around your home, but which products are best? Here are 12 types of tools that leverage ...

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 ...

Can you imagine sound travels in the same way as light does? A research team at City University of Hong Kong (CityU) discovered a new type of sound wave: the airborne sound wave vibrates transversely ...

3D printing typically involves depositing layers of molten plastic, laser-melting powdered metal, or using UV light to harden gelatinous resin. A new technique takes yet another approach, however, by ...

Understanding sound waves in crystals We all experience sound every day—we communicate, enjoy music, and recognize countless noises around us. All these phenomena are related to longitudinal sound ...

IN a Chicago laboratory a test tube full of water containing a squirming goldfish was placed for half a minute in a device which produces silent sound waves, pitched far beyond the topmost notes of a ...