Vakuum - vom Barometer zur Ultrahochvakuum-Apparatur

Air pressure often goes unnoticed in everyday life. But when we create a vacuum, i.e. an airless space, the air pressure surrounding us becomes noticeable. Many things change in a vacuum - for example, the propagation of sound or the boiling of liquids.  

We go even further away from everyday reality when we consider the so-called "ultra-high vacuum". Here, the pressure is a factor of 10¹³ (10,000,000,000) times smaller than in our everyday life. Such a vacuum is costly to create, but it is very important for many experiments in physics and also in industry - for example, in the investigation of surfaces or in the semiconductor industry. 

In this lecture, many surprising connections and effects in a vacuum will be presented. Live experiments will be shown, which of course can be followed particularly well when attending in the lecture hall.

Direct link to live stream