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Scientific amusements . d should be diosen inpreference to all other articles. A Japanese umbrellawill also suit. EFFECTS OF CENTRIFUGAL FORCE. The effects of centrifugal force are manifested under agreat variety of circumstances, and we may filequentlyobserve them. | When a railway is run round a sharp curve, tie outerrail is always raised above the inner, so that tne trainwhen passing round the curve may retain its positionon the metals. f If you run rapidly round a small circular track youwill find it necessary to incline your body towards thecentre, so that your, course may thus become t

Scientific amusements . d should be diosen inpreference to all other articles. A Japanese umbrellawill also suit. EFFECTS OF CENTRIFUGAL FORCE.  The effects of centrifugal force are manifested under agreat variety of circumstances, and we may filequentlyobserve them. | When a railway is run round a sharp curve, tie outerrail is always raised above the inner, so that tne trainwhen passing round the curve may retain its positionon the metals. f If you run rapidly round a small circular track youwill find it necessary to incline your body towards thecentre, so that your, course may thus become t Stock Photo
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The Reading Room / Alamy Stock Photo

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2AXH499

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7.1 MB (0.9 MB Compressed download)

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1394 x 1792 px | 23.6 x 30.3 cm | 9.3 x 11.9 inches | 150dpi

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Scientific amusements . d should be diosen inpreference to all other articles. A Japanese umbrellawill also suit. EFFECTS OF CENTRIFUGAL FORCE. The effects of centrifugal force are manifested under agreat variety of circumstances, and we may filequentlyobserve them. | When a railway is run round a sharp curve, tie outerrail is always raised above the inner, so that tne trainwhen passing round the curve may retain its positionon the metals. f If you run rapidly round a small circular track youwill find it necessary to incline your body towards thecentre, so that your, course may thus become the morerapid. The effects of centrifugal force are otherwise frequentlyobservable, as, for instance, when a carriage-wfieel is CENTRIFUGAL FORCE. 13 revolving rapidly the mud which adheres to the tire isflung away from the wheel by the action of centrifugalforce. It is centrifugal force which sometimes causes mill-stones to split when revolving at a high speed. It isthe same force which causes the tiny drops of water to. Fig. 10.—The Cane-sling. fly out of the wicker basket in which -lettuce is beingwashed, dried, and shaken. TffE SLING.When one launches a stone from a sling, the stone 14 PEOPERTIES OF BODIES. escapes from the circle which it has been made to describeas soon as one string of the sling has been let go, andit flies off at a tangent with the same velocity that hasbeen imparted to it at the moment it was released. TO THROW A POTATO TO A GREAT HEIGHT. When the writer was a schoolboy and used to walkin the country, he substituted an ordinary walking-stickfor the sling, and for the stone a potato, and in thefollowing manner he succeeded in his experiment. Hefixed a potato at the end of his cane in a firm way, andthen, whirling the stick as he would whirl a sling, hesuddenly stopped the motion when the end of the stickpointed upwards. The potato .was thus hurled to animmense height in the air. The Principle of Inertia. In treatises on mechanics and physics, inertia i

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