Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

Xi Jinping, general secretary of the Communist Party of China (CPC) Central Committee and Chinese president, has stressed that the environment concerns the well-being of people in all countries. Xi ...

Zoology is the scientific study of animals. This discipline can include animal anatomy, physiology, biochemistry, genetics, evolution, ecology, behaviour and conservation. A clade-wide study of ...