The outlines of physics: an elementary text-book (1897)
Nichols, E. L. (Edward Leamington), 1854-1937 · New York, The Macmillan Company; London, Macmillan & Co., Ltd. · leaf 79
n the rope is all unwound, the wheel, now at high speed, beginsto rewind it in the Opposite sense. The operator still holds the slackof the rope, giving suflBcient tension to secure a snug, smooth wind- 64 THE OUTLINES OF PHYSICS ing. Just before the last of the slack is taken up he releases the… … Fig. 43. 58. The Conservation of Energy. — In these changes, asregards energy, which the bob of a pendulum undergoesin the course of its oscillation, we have one of the simplestexamples of what is called the transformation of energy.Energy changes continually from the kinetic to the poten-tial…
Physics
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