New device can transmit underwater sound to air
Metamaterial could improve marine-life monitoring and underwater communication, but applications are a long way off
![illustration of a metamaterial](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/01/011918_DG_metamaterial_feat.jpg?fit=860%2C460&ssl=1)
SO META A new metamaterial, illustrated, uses precise vibrations to allow underwater sound to be transmitted through it. (Blue and red show vibrations in opposite directions.)
Sam Lee/Yonsei University