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Show VVhat Keeps tlio liiry-lt.r CpriKlit? Let tis Eiippuso a cyclist mounted on his wheel and ri lini;, say, toward the north. Ho finds himself U-tp lining to tilt toward liisriulit- Ho is now goitu? not only north with tiie machine, but east also. He turns the wheel eastward. The point of support must of necessity travel in the plane of the wheel. Henco it at once begins to ro eastward, and as it moves much fa-tor than the rider tilts it quickly g' ts under him, and the machine ma-chine is iiKain upright. To oue standing at a distance in front or rear the bottom bot-tom of the wheel will bo seen to move to the right and left. I conclude, then, that the stability of the bicycle is due to turning the wheel to the right or left, whichever way the leaning is, and thus keeping the point of support under the rider, just as a boy keeps upright on his finger a broomstick broom-stick standing on its smallest emL Charles 15. Warring in Popular Science Monthly. |