Vera Thaens' unique rainwater harvesting and purification system circulates water across ridged tongues that agitate the water. This process simulates the memory of water, arising from the stimulation of river water coursing over rocks and winding along riverbeds. Such simulations prove necessary, since matter is simply "pockets of energy, vibrating at certain frequencies." Altering water's material properties thus requires one to recreate the river's vibrational frequencies.