He noticed dangerous boulders along the creek banks and avoided them the best he could, when the ground slid out from under ...

Someone puts on their reverse lights to back into a parking spot and some total jerk sweeps in and steals the space right ...

Abstract: This article presents an efficient synthesis method for generating vortex beams based on donut-shaped orbital angular momentum (OAM) metasurfaces. It not only allows one to synthesize the ...