But an artist easily perceives that the same force in the spring or pendulum has always the same influence on the wheels; but fails of its usual effect, perhaps by reason of a grain of dust, which puts a stop to the whole movement.
Artisauari ordea ez zaio batere zaila ohartzea eragingailuan edo penduluan indar berak eragin bera izaten duela beti gurpiletan, baina bere ohizko efektuan huts egiten duela hauts ale baten erruz agian, zeinak mugimen osoa geldiarazten duen.