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The Epic Interactive Encyclopedia 1996
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Epic Interactive Encyclopedia, The (1996)(Epic Marketing)[non-bootable].iso
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pendulum
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1992-09-02
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367b
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11 lines
A pendulum is a weight (called a `bob'),
swinging at the end of a rod or cord. The
regularity of a pendulum's swing was used in
making the first really accurate clocks in
the 17th century. Pendulums can be used for
measuring the acceleration due to gravity (an
important constant in physics), and in
prospecting for oils and minerals.
Subject by: Vince Pike