The paper in question makes use of something called transformation optics to create a wormhole for sound waves. So let’s break ... they created a curved 2D surface in a 3D world.

A new technique takes yet another approach, however, by utilizing sound waves ... print a structure within a patient's arm For instance, utilizing the technique, aircraft mechanics could ...

Now, researchers at the University of Wisconsin have discovered a way to use light to 3D print with more than one material. Today, most 3D printers that lay down multiple materials use separate ...