High above us, the atmosphere is teeming with life. Birds, bats and insects share the airspace, but divide it into different ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Abstract: This article presents a new method for accurately estimating the height and zonal drift velocity of ionospheric irregularities, based on crossed signal paths from two BeiDou geostationary ...

Abstract: Virtual reality (VR) offers an ecologically valid and scalable platform for eye-tracking research, enabling stereoscopic 3D visualization and unrestricted participant movement. However, ...