Mastering power production ; the industrial, economic and social problems involved and their solution . Fig. 131.—Man-Power Development Applied to Irrigation In Japan even to-day this practice is in vogue. This form of power is strictly-localized and limited to Fig. 132.—Primitive Water-Power Development Together with wind mills, water wheels are the first conquest of mans brainpower over the free energy in nature. Mechanical power developed is alsoutilized locally. 393 Historical Review The advent of power as the most potent factor of the culturaldevelopment of a people must be bri
Mastering power production ; the industrial, economic and social problems involved and their solution . Fig. 131.—Man-Power Development Applied to Irrigation In Japan even to-day this practice is in vogue. This form of power is strictly-localized and limited to Fig. 132.—Primitive Water-Power Development Together with wind mills, water wheels are the first conquest of mans brainpower over the free energy in nature. Mechanical power developed is alsoutilized locally. 393 Historical Review The advent of power as the most potent factor of the culturaldevelopment of a people must be briefly reviewed before the imme-diate problems and future aims can be clearly grasped and construc-tive efforts properly directed. The history of the progress of mankind from the Prometheanfire and arts of Hephaestos, down to modern industry, is the storyof the development of power and its application to mans the ages up to the eighteenth century, stretched the periodof the primitive knowledge and use of power. This period, of windand water, is marked by the limited, local and individual character ofits industries. (See Figures 131 and 132.) When men learned to liberate the energies of coal and use thepower of steam as a motive force, the old world ord
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