. Bulletin - United States National Museum. Science. pendulum was liv other observers ami finall) was losl ai sea ' n an expeditit u around the world. The knowledge oi the- pendulum acquired by the end of the Kith century was summarized in 1783 in a memoir by Bosco\ ' '• Pere R. J. Boscovich, Optra periinenlia ad Opiicam el Astronomian (Bassani, I '85), voL ?. no. 3. rhe practice with the "simple" pendulum on the part of Picard, Bougui . I a I and others in France culminated in the work of Borda and Cas- sini in 1792 ai the observatory in Paris *° (fig. 6)- The : I J. D. C
. Bulletin - United States National Museum. Science. pendulum was liv other observers ami finall) was losl ai sea ' n an expeditit u around the world. The knowledge oi the- pendulum acquired by the end of the Kith century was summarized in 1783 in a memoir by Bosco\ ' '• Pere R. J. Boscovich, Optra periinenlia ad Opiicam el Astronomian (Bassani, I '85), voL ?. no. 3. rhe practice with the "simple" pendulum on the part of Picard, Bougui . I a I and others in France culminated in the work of Borda and Cas- sini in 1792 ai the observatory in Paris *° (fig. 6)- The : I J. D. Cassini de Thurv, "Exp£riences pour connaitre la longuer du pcndule qui bat les secondes a Collection de mhnoires, vol. 4, pp. 17-64. PAPER 44: DEVELOPMEN1 01 GRAVITY PENDULUMS IN THE 19TH CENTURY 311. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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