The Transportation Security Administration (TSA) will soon allow travelers to keep their shoes on during the screening process, dropping a rule after nearly 20 years of enforcement, multiple ...

On Pixel phones and many other Android handsets, the default keyboard is Gboard. When it pops up on screen, tap the mic icon ...

Therefore, it is possible to synthesize COFs with different structures by twisting building blocks from planar to tetrahedral with steric hindrance. We believe this result represents a general and ...