. Scientific American Volume 70 Number 08 (February 1894) . EXPERIMENT IN GRAVITY. the formula of the cylinders volume: V = ri7th, thevalue of r=150 mm., we have : 15=1502 it h, therefore 15 1 thickness=7i = - * Abstract of Address on General Medicine, at a meeting of the Missis-sippi Valley Medical Association, October 12, 1898, 150* it 4712 II. Experiment in Gravity. — Fit together threecylindrical pieces of wood, as shown in Figs. 1 and 2, tomake a double wheel. Then procure two rails abouttwo feet long, with a projecting part in the middle, asin eross section, Figs. 1 and 2. The projection
. Scientific American Volume 70 Number 08 (February 1894) . EXPERIMENT IN GRAVITY. the formula of the cylinders volume: V = ri7th, thevalue of r=150 mm., we have : 15=1502 it h, therefore 15 1 thickness=7i = - * Abstract of Address on General Medicine, at a meeting of the Missis-sippi Valley Medical Association, October 12, 1898, 150* it 4712 II. Experiment in Gravity. — Fit together threecylindrical pieces of wood, as shown in Figs. 1 and 2, tomake a double wheel. Then procure two rails abouttwo feet long, with a projecting part in the middle, asin eross section, Figs. 1 and 2. The projection of will be noticed to be longer than that of Fig. 2,and the distance from the axle to the rims of thewheels to be less than projection in Fig. 1 and morethan that in Fig. 2. Now putthe two rails with theirends close together, supporting the opposite ends, toproduce slight inclination. So the apparatus is readyfor use. Set the wheel on upper end of rail No. the projection is greater than the correspondinggroove of the wheel, the latter wil
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