...The end of the abdomen, continually palpitating, rapidly closing andopening its valves, oscillates right and left like a pendulum... 
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...It hangs in an almost vertical position, the headdownwards, swinging like a pendulum if I touch the cover...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...The dainty cylinder quivers and swings to and fro at theleast breath; it reminds me of the famous pendulum suspended from thedome of the Pantheon to prove the rotation of the earth...
J. H. Fabre 「The Wonders of Instinct」
...If we draw the pendulum aside from its verticalposition and then release it, the weight will swing to and fro...
Robert Stawell Ball 「The Story of the Heavens」
...Toverify this law we suspend another pendulum beside the first, both beingof the same length...
Robert Stawell Ball 「The Story of the Heavens」
...It is the gravitation of the earth which makes the pendulum swing...
Robert Stawell Ball 「The Story of the Heavens」
...Bring the same pendulum to another part of the earth, and repeat theexperiment...
Robert Stawell Ball 「The Story of the Heavens」
...The pendulum thus enables us to make a gravitational survey of thesurface of the earth with the highest degree of accuracy...
Robert Stawell Ball 「The Story of the Heavens」
...The best clock which Tycho Brahé could get for his observatory wasinferior to one that may now be purchased for a few shillings; and thischange is owing to the discovery of the pendulum by Galileo...
Oliver Lodge 「Pioneers of Science」
...The system wasstable, and its changes were merely like those of a swinging pendulum...
Oliver Lodge 「Pioneers of Science」
...Anyone can try the pendulum experiment who hasaccess to some lofty place from which to suspend the ball...
Henry Warren 「Recreations in Astronomy」
...Toobserve the movements of the pendulum, it is kept in a dark room,and a ray of light is directed to the mirror, m, and thencereflected upon a screen...
Henry Warren 「Recreations in Astronomy」
...The fundamental principle ofthis experiment is that the plane in which any pendulum is made tooscillate remains invariable even when the point of suspension isturned...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...The discovery by Galileo of the isochronism of the pendulum, followed byHuyghens’s adaptation of that principle to clocks, has been one of thegreatest aids to accurate observation...
George Forbes 「History of Astronomy」
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