Работа №3. Опыт №1 - 463 sec Работа №3 - Окислительно-восстановительные реакции. Опыт №1: Влияние характера среды на окислительную активность Auteur : NWTU Tags:видеопрактикумхимияСЗТУ
Liquid Nitrogen and the spinning ping pong ball - 89 sec 2 holes are punctured at a slanting/glacing angle into a ping pong ball. It is then immersed in liquid nitrogen. The air inside it cools. This lowers the air pressure inside the ping pong ball. Liquid nitrogen then partly fills the ping pong ball. The ping pong ball will start to spin as cold liquid nitrogen boils shooting out cold nitrogen gas from these 2 holes. Auteur : petersplim Tags:Liquidnitrogenspinningpingpongballpeterlim