This step-by-step guide shows you how to use your iPhone's built-in tool to find and merge all duplicate photos and videos.

Abstract: In this paper, a two-dimensional wideband single-channel direction finding method is proposed. The subspace of multi-order harmonic components is used to achieve single-channel direction ...

Radio astronomy took another step forward recently, with the completion of Phase III of the Murchison Widefield Array (MWA) in Western Australia. We've reported before on how the MWA has investigated ...