Varignon, Pierre
,
Projet d' une nouvelle mechanique : avec Un examen de l' opinion de M. Borelli sur les propriétez des poids suspendus par des cordes
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DE M. BORELLI
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">CHAPITRE II.
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NOUVELLES DEMONSTRATIONS
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du ſentiment d’Hérigone, de Stévin, &c.</
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des cordes.</
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">AVEC QUELQUES PROPOSITIONS
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de M. Borelli renduës par la méthode du Projet
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précédent beaucoup plus générales qu’elles
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ne le peuvent être par la ſienne.</
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">LE Poids T étant ſoutenu par deux, ou pluſieurs puiſ-
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ſances R, S, &</
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">ſig. 4.
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5.</
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parties CG, CH, &</
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">de leurs cordes qui leur ſoient pro-
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portionnelles, on fait GP, HQ, &</
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">perpendiculaires ſur
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ſa ligne de direction CD; </
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">elles y déſigncront depuis leurs
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points de rencontre P, Q, &</
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ligne concourt avec ces cordes, certaines parties CP, CQ
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&</
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quoy nous leur allons donner des noms.</
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