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 ...

Mesmerizing drone footage shows a sharp boundary where two rivers meet in Nanning, China. At the confluence of the Yongjiang River, the turbid water of the Zuojiang River meet the clear Youjiang ...

THE cotton plant is well known to shed some of its fruiting-points following periods of cloudy weather, and such shade-induced losses are often in excess of the natural shedding normally ...