Abstract: We present a comprehensive tutorial on the finite-difference time-domain (FDTD) modeling of space, time, and space-time-varying media, building upon our previous review by offering a ...

Dubai: Ras Al Khaimah Police have recorded a notable improvement in public safety during the first half of 2025, with serious crimes falling by 6.9 per cent compared to the same period last year.

The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer—has long captured the public imagination. Yet most arguments about it rest ...