Fascynujący azot

In 1883, two Polish physicists, professors at the Jagiellonian University, Karol Olszewski and Zygmunt Wróblewski, liquefied oxygen, nitrogen, and several other gases. At the time, this was a remarkable achievement. Today, liquid nitrogen is used in many fields of technology and medicine. Teachers and students alike are familiar with its entertaining properties. In this video, I present some interesting effects achieved using liquid nitrogen. This is the physics of low temperatures. I invite you to watch it.