ntersections will be thepointsof the curve inclined plane, although it travels over a longer dis- fugal force. The descent of the ball is accelerated. The required. Through these points the curve is drawn and tance. In the case of the cycloidal curve, the body ac- spiral railway represented in the… … Fig. 3.-CENTRIFUGAL RAILWAY. Fig. 4.-SPIRAL RAILWAY. ning is practically vertical. This curve has been called form to this curve. The track, when completed, must high, six inches in diameter, the rails being %. inch the curve of swiftest descent, as a falling body passes sustain the same relation…
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