Scientists at Harvard have built a miniature device that can twist and tune light in real time. By rotating two stacked photonic crystals and adjusting their spacing with a tiny mechanical system, ...

Smaller budget. No app or cloud.

With Gemini for Home arriving, Google's home voice assistant options are better than ever. Here are my favorite commands.

Abstract: In this article, the issue of stabilization is investigated for the discrete-time linear system with time-variant state-delays and distinct input-delays. The trivariate fundamental matrix is ...

Abstract: The rotational inertial navigation system (RINS) can reduce its error by regularly changing the inertial device’s attitude. But the pre-designed rotation ...