Step back into the world of Ancient Rome, mapped out through Google Earth with unit placements that bring history to life.

In the 3rd century CE, China fractured into three rival states—Wei, Shu, and Wu—ushering in one of the most turbulent and ...

Abstract: Electromagnetic waves propagation through the ionosphere is subject to several effects including refraction, absorption, signal delay, or Faraday rotation. A ray tracer propagator that ...