When you dare say what everybody else is thinking…

Using “One should really play more!” as title of a presentation in a serious scientific colloquium might seem like a bold move, but the gamble payed off: a large, interested audience including everyone from students to professors enthusiastically dropped ice cubes and food dye in our LEGO-driven rotating tanks and passionately discussed their observations. On […]

12 students, four rotating tables, three experiments and one dog

Yesterday we had four rotating in operation simultaneously, running three different experiments. It’s pretty awesome to be able to bridge spin-up times by just observing what the teams on the neighboring tables are up to, also it’s nice to get a variety of experiments all happening at the same time. Very entertaining and educational indeed! […]

Welcome to the family!

In addition to our four DIYnamics-inspired rotating tanks, we now have a highly professional rotating table with SO MANY options! And also so much unboxing and constructing and trouble-shooting to do before it works. But we finished the first successful test: wanna see some rotating coffee in which milk is added? Then check this out!

Observing how rotating systems behave differently from non-rotating ones

One might ask oneself why we are insisting on rotating tank experiments. In order to establish that rotation isn’t just there to make equations a lot more complicated, but that it actually changes how things behave, we ran two different experiments. Turbulence in rotating and non-rotating system First the probably easiest experiment anyone could imagine: […]

Bringing in more expertise: Playing with Rolf Käse

Yesterday Torge and I spent a fun Friday night trying out new rotating tank experiments together with Rolf Käse. Rolf taught the lab course that got me into tank experiments (back in 2004!) and he’s still such a huge inspiration! Rolf brought his tank which features a conical bottom, and this gives so many more […]

The DIYnamics rotating table and our experiences with it

The inspiration for Torge’s and my PerLe teaching innovation project was a 2018 article by the DIYnamics team in which “affordable rotating fluid demonstrations for geoscience education” are presented. We were first intrigued, then excited, and since I have always wanted to have a rotating table to play with at home, there was nothing to […]