A rectangular piece of velour paper is placed in the apparatus consisting of an upper and lower trough. Owing to capillary forces, water from the upper trough is drawn in by the paper. The water flows down into the velour paper. The flow of water in the upper level is marked with a dye at constant intervals. Owing to the low speed of flow of approx. 2 mm/s, the development of currents can be observed with the help of the dye. After the velour paper has been dried, a lasting current pattern remains, which can be copied and evaluated.
Dimensions: approx. 220x140x240 mm3
Weight: approx. 1 kg
Contents:
- 2 Acrylic glass basins
- 1 Mask
- 20 Sheets of velour paper with cut-outs
- 1 Mini-flask with dye
- Swab for dye
- Rubber gloves