Cracks on the sand portend the beginning of a landslide event in a small-scale slope model. The wired black object embedded in the middle is the exposed part of a link of sensors that measure movement, soil moisture and pore water pressure within the sand (De Dios, et al. pp 15-27 this issue). Image courtesy of Engr. Marc Talampas of the Electrical and Electronics Engineering Institute UP Diliman.