The London, Edinburgh and Dublin philosophical magazine and journal of science . to make torsional vibrations, the time of vibration, t,is given by the formula t = 2ir -A- where c is a constant depending on the dimensions and natureof the material of the wire. This gives the well-known meansof determining the moment of inertia of a body about an axispassing through the centre .of gravity of the body, the constantc being determined by another experiment with a body ofknown moment of inertia. The apparatus which it is the object of this paper todescribe consists of a circular wooden table TT sup
The London, Edinburgh and Dublin philosophical magazine and journal of science . to make torsional vibrations, the time of vibration, t,is given by the formula t = 2ir -A- where c is a constant depending on the dimensions and natureof the material of the wire. This gives the well-known meansof determining the moment of inertia of a body about an axispassing through the centre .of gravity of the body, the constantc being determined by another experiment with a body ofknown moment of inertia. The apparatus which it is the object of this paper todescribe consists of a circular wooden table TT supportedby brass rods liliR, to which the suspending wire W is * Communicated by the Physical Society : read January 23, 1903. TaUp for Determining Moments of Inertia. 649 w attached by a small vice V. In the diagrams shown, fig. 1represents a side view of the table, and fig. 2 a plan of thetop of the table. P is a pointer attached to the centre of thetable, and below is a fixed pointer P restingbeneath. In the top of the table a circular pi Fig. 1. on a tableroove (fig. 2) is. Kff. 2. w
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Keywords: ., bookcentury1800, bookdecade1840, bookidlondon, booksubjectscience
