A bizarre "portal from hell" has opened up in a lake with a weird spinning vortex effect. The gigantic 75ft-wide hole took place after water levels in the Lake Berryessa reservoir in eastern Napa ...

Optical vortex beams, characterized by their helical phase fronts and orbital angular momentum (OAM), are pivotal in applications such as high-capacity communication, optical manipulation, and quantum ...

This post contains spoilers for the "Stargate" franchise. In Roland Emmerich's "Stargate," we see an energy vortex created by the titular device rush out of the gate like a pressurized flood. On its ...