If a chip - scale laser is intended to emit radiation in one direction, then any radiation it emits in lateral directions is wasted and increases its power consumption. (sciencedaily.com)
The new findings show that this mechanism works by restricting vibrations as they travel through the small lateral direction of an asymmetrical structure. (sciencedaily.com)
Have one arm with a bent elbow overhead (pointing to the ceiling) and pull on that elbow in a sideways / lateral direction using the free hand. (ptinto.com)