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St. Nicholas [serial] (1873)

Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 543

An illustration from St. Nicholas [serial], 1873, leaf 543
if you will readcarefully the remainder of this article, I hope toshow you that it is really a very important thing.But before doing this, let me tell you of anotherexperiment which you may easily try if you pos-sess and know how to use the new1 toy diabolo.Get it in rapid rotation, keeping both… … ■JZJto*^ FIG. 2. DIABOLO ILLUSTRATES GYROSCOPIC ACTION. it in the manner just described, this axis will al-ways remain pointing in the same general direc-tion ; but you will find it difficult quickly to alterthe direction of this axis. A bicycle really consists of two gyroscope-likewheels. When…

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