|Bicycles packed and ready to leave on a cold day at Camping Meuleman in Twente|
A method that makes students nervous is always nice to teach. In this case it requires teamwork and fast reaction as the whole experiment is over in about 10 seconds. We measure the hydraulic conductivity (or permeability of the soil for water) with three methods. The first one is by the ring infiltrometer. This is a nice a method which does not require eagle eyes or fast reaction as the "bubbles" that need to be recorded are quite slow leaving students time to mull over the meaning of life and other irrelevant questions.
|Thomas and Anne reading a Mariotte bottle during a ring infiltrormeter test|
|Asta and Patricia in action on the Dinkle river beach under close supervision of Robbert|
|Start of the action, all is relatively calm at this stage|
|Asta reading the measuring tape every two seconds while Anne writes things down.|