Popular science monthly . The target is a fan composed of paddles and the object of the game is to throw a ballthrough the openings between them while the fan is revolving, without toudiing them Motoring on Roller-Skates II \vc had wliLcls on our fec-t, some-thing like the wings on Mercurysheels, would we get there muchmore quickly? Walking is admittedlyan energ\-consuming method of loco-motion. A mans legs weigh fort\or fifty pounds apiece, and the sheerlabor of shifting them one ahead ofthe other means a considerable expcn- d^^*t£ Cono LUB/ttCATINO. CASOllN£TANfi Fig. 1. The driving agency i
Popular science monthly . The target is a fan composed of paddles and the object of the game is to throw a ballthrough the openings between them while the fan is revolving, without toudiing them Motoring on Roller-Skates II \vc had wliLcls on our fec-t, some-thing like the wings on Mercurysheels, would we get there muchmore quickly? Walking is admittedlyan energ\-consuming method of loco-motion. A mans legs weigh fort\or fifty pounds apiece, and the sheerlabor of shifting them one ahead ofthe other means a considerable expcn- d^^*t£ Cono LUB/ttCATINO. CASOllN£TANfi Fig. 1. The driving agency is a smallgasoline engine in the rear of each skate diture of energy. Placing the sameweight on the respective pedals of abicycle will convey a man much locomotion has time and againdemonstrated itself to be the mostefficient method of getting over theground. This leads up to the subject of roller-skates. Why is it they are not more inuse? A man on skates can propel him-self half a block with a stroke or there any reason wh>- their use shouldbe confined to children? Is it the dignii>-of the thing? .Assuredly Americansnever stop for dignity if a new con-tri\ance will get them where the\ wantto go laster than has before been possible. Scores of different kinds of roller-skates have been in\ented. All the in-ventors appear to be striving toward anunattainable ideal, and each approachesthe problem from a different ordinary four-wheeled skate suchas children use is too tame for mostinventors. The>- would ma
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
