IF you want to catch a lot of fish, set out many fishing rods,” a wise man in the motor industry once said. Toyota is ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...

Abstract: In this paper, a multifunctional scattering antenna array has been proposed to generate orbital angular momentum (OAM) vortex scattering wave and meanwhile reduce antenna radar cross section ...