There’s few things more satisfying than putting your all-round knowledge to the test – and geography is often the round that really raises the bar. To give budding quiz hosts a helping hand, we’ve put ...

Fancy putting your musical know-how to the test – or giving your mates and relatives a proper challenge? You’ve come to the right place. We’ve put together a stash of brain-teasing music questions, ...

Abstract: In this paper, we study the downlink precoding of spatial non-stationary (SnS) extremely large-scale multiple-input multiple-output (XL-MIMO) in the near-field channel with uniform spherical ...