Physics' Advent Calendar

Sorry for all those beachy pictures and the stories about 30°C ;) Here's something different:
The Physics Advent Calendar (Physik im Advent, PiA)!

... which has started with it's first advertising video which includes the person writing this blog ;):

PiA consists of a daily experiment from the 1st to the 24th December and it's fun! Students of all ages can participate in a competition and even entire departments in companies conduct the experiments, just for fun! Try it, it's great!