A Horse's Power

Twenty-one and two-tent's horse power in a test of 25 feet on a cinder-surfaced road were developed by Cap and King, a pair of 10-year-old Percheron geldings, in unique pulling tests at the Iowa State Fair, Des Moines. By means of a hydraulic wagon, or dynamometer, recently invented, the "tractive pull" of horse teams was determined with scientific accuracy for the first time. This is the kind of energy required to pull a varying weight out of a hole in the ground. The winning pair exerted a...

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