...Some towered towardthe metal-beamed ceiling, with great swaying pendulums that tickedlike a giant clock...
Various 「Astounding Stories, June, 1931」
...If we draw both pendulums aside and then releasethem, they swing together and return together...
Robert Stawell Ball 「The Story of the Heavens」
...But if we draw one pendulum a great deal to one side, and theother only a little, the two pendulums still swing sympathetically...
Robert Stawell Ball 「The Story of the Heavens」
...Let us change the weights onthe pendulums, so that they are of unequal size, though both of iron...
Robert Stawell Ball 「The Story of the Heavens」
...This isthe period of the planetary oscillation: "a great pendulum of eternitywhich beats ages as our pendulums beat seconds...
Oliver Lodge 「Pioneers of Science」
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