Lab excursion

For our this year's lab excursion, we plan to visit the "Phantasialand", an amusement park in Brühl, around 2h to drive from Gießen. First, I want to find a week where most of us are available, and then in a second poll, find a specfic day. Therefore, I like to ask you to fill the poll until end of the week. Best, Michael