A treatise on gyrostatics and rotational motion . of the grooved wheel, and not to the frame ofthe gyrostat, A preferable method of carrying out the experiment consistsin starting the gyrostat from one end ofa slack wire, when it will run to and fro,and finally come to rest. This gives an idea of gyrostatic bal-ancing of a monorail carriage. This ishowever better shown in this monorailtop which runs along a wire on two smallwheels. With the weight above there isdouble instability: (1) for turning aboutthe wire, (2) for turning about an axistransverse to and above the wire. Thesetwo instabiliti
A treatise on gyrostatics and rotational motion . of the grooved wheel, and not to the frame ofthe gyrostat, A preferable method of carrying out the experiment consistsin starting the gyrostat from one end ofa slack wire, when it will run to and fro,and finally come to rest. This gives an idea of gyrostatic bal-ancing of a monorail carriage. This ishowever better shown in this monorailtop which runs along a wire on two smallwheels. With the weight above there isdouble instability: (1) for turning aboutthe wire, (2) for turning about an axistransverse to and above the wire. Thesetwo instabilities are stabilised by rotationof the flywheel. If a weight is suspended from one sideof the to]) it will lean over to the otherside of the wire, thus imitating the actionof a man who. holding a heavy weight in one hand, leans over so as tobring the centre of gravity of the system, composed of the weight andhimself, vertically above the centre of the base formed by his feet. The balancing action of this top is best shown by attaching the two ends. I INTRODUCTORY 33 of a long wire fco two fixed points, one at each side of a lecture top is placed on the wire at one end, when it runs to and fro on thewire, coming to rest in the middle position. As an alternative the wiremay be tightly stretched between two points not on the same level. If theslope of the wire is small and the top is started from the highest point ofthe wire, it will run slowly down the incline. The balancing action in thisease is striking. The top may be pushed to and fro on the wire withoutany danger of capsizing. 28. Gyrostatic action of rotating machinery. Examples: Paddles of<t steamer, wheels of a carriage. The gyrostatic action of the rotating parts of machinery is, if the speed of rotation is great or the dimensionslarge, of importance in connection with the running of ships or vehiclespropelled by such machinery. We take a paddle-steamer as the firstexample, though in consequence of the slow s
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