Accurate Clock Pendulums crisis strategies Young Oscar Keen is forced

Young Oscar Keen is forced to take over his father's biscuit factory

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Accurate Clock Pendulums crisis strategies Young Oscar Keen is forcedThe Shortt clock, made in the 1920s, is the most famous accurate clock pendulum ever known, having an accuracy of one second per year when kept at nearly constant temperature. Almost all of a pendulum clock's accuracy resides in its pendulum. If the pendulum is accurate, the clock will be accurate. In this book, the author describes many scientific aspects of pendulum design and operation in simple terms with experimental data, and little mathematics.