SANTA CLARA — Brock Purdy is out. Nick Bosa is out. Fred Warner is out. But Christian McCaffrey? It turns out the 49ers’ star running back is still playing. And boy, is he good. It took seven games — ...

Abstract: GaN-based light-emitting diodes (LEDs), which are regarded as one of the most important alternative light sources for visible light communication (VLC) systems, have been constrained by ...

The 2023 implosion of an experimental submersible was the result of faulty engineering, a report from the National Transportation Safety Board has found. Five people aboard the submersible died ...

Faulty engineering led to the implosion of an experimental submersible that killed five people on the way to the wreck of the Titanic, the National Transportation Safety Board concluded in a report ...