Decades ago the University of Nebraska started a tractor testing program to rate the horsepower of engines. Dr. Joe Henggeler, Irrigation Specialist for the Univeristy of Missouri is using that same concept to develop a program called armchair pump evaulatuion that will help farmers evaluate the energy use of their irrigation pumps.
Once you have the RealPlayer installed, click one of the two speeds listed to start playing the file. If your connection is less than 56K (28.8 or 33.6), you should choose the 28K file. If your connection is 56K or higher, choose the 56K file.