Example of the capillarity experiment

Basic principle :

- Two materials: a paper and a cotton thread, both dipped in coloured water.

Will they be impregnated and how long will it take?

Metaphor of the impregnation during this residence of all the actors: the residents, the professionals, the families?

First results: the cotton thread seems to be impermeable for the moment (something I had not imagined at all) whereas one can see the words collected in the morning are quickly "infused".