Difference between revisions of "Vertical Pendulum Tilt Meter"
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| − | "As a result of the successful tests with the Claustral Pendulum, Bidston acquired a Graf-Askania vertical pendulum of its own, and installed it after modification." <ref name="scoffield"></ref> | + | "As a result of the successful tests with the Claustral Pendulum, Bidston acquired a Graf-Askania vertical pendulum of its own, and installed it after modification." <ref name="scoffield">Joyce Scoffield, ''Bidston Observatory, The Place and the People''. p328</ref> |
