Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 39
es to ring each time the pendulumpasses the mercury, thus showing theseconds. 104. 1st Experiment. Place a small additional weight, called theover weight,* upon the weightwhich rests upon the hinged plat-form, and allow the pendulum tobeat. The weight falls, and atthe end of one second has… … *A convenient overweight is one-sixteenth the sum of the weights. 30 ATTKACTION, 105. The distances passed in each second are found bysubtracting the distance already passed, and vary as theodd numbers. 106. If the overweight is -^ of the sum of the two weights, the distance represented by one…
Physics
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