Water Movement in Soils, Infiltration in Aggregate and Sand. 

Water Movement in Soils, Capillary Infiltration in Aggregate and Sand.
When Dr. Walter Gardner passed away in June (2015), many considered the film "Water Movement in Soils" as one of the main accomplishments of a remarkable career. Dr. Gardner and Jack Hsieh made the film in 1959 at Washington State University. The technology they used was impressive--it was years before advanced electronics would make time lapse movies routine.
Watch the entire video at www.waterpotent...