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Show Walking and Balancing. It Is pointed out that In walking or ninulng tho arms and legs produce a "balancing" llko that of the reciprocal Ing nnd revolving pints of n locomotive. locomo-tive. The movements of tho legs react upon tho trunk and teud to rotate It In alternate directions about a vertical axis, nut thu awlnglng of tho nrm.H, each in unison with tho opposite leg. produces an opposttg mechautcal con-le, con-le, the effect of which Is to rotate the trunk In the other direction, thus balancing, bal-ancing, in part at least, the rotating action of ho Ices. |