Sound is one of the ancient physical phenomena people studied. Researcher have been exploring the mystery of sound all the time. In recent years, more and more attention has been applied to the study ...

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 ...

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 ...