Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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143
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guntur fricari, vnde non parum circumuolutio retardatur.
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<
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">Secundo quia quæ minor eſt rota, ſicut pluries, quàm ma
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ior debet conuolui ad eleuandum, vel trahendum aliquod
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pondus, ita pluries eſt illi ſuperanda huiuſmodi reſiſtentia,
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ſeu impedimentum fricationis;
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abbr
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proindeq.
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difficilius id præ
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ſtabit: ſicut è contra facilius, quæ maior eſt,
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abbr
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paucioribusq.
">paucioribusque</
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circumuolutionibus indiget. </
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<
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id
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">Quo fit, vt ex quatuor rotis
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curruum, duæ anteriores, vt quæ minores ſint, ac ſæpius cir
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cumuoluantur, ſæpius etiam indigeant vnctione, ac facilius
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conterantur; vt Aurigis ſatis eſt notum. </
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<
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N14495
">Cum enim ſimul
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eodem tempore æquale ſpatium percurrere debeant, ac ro
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tæ maiores, quod ipſis deeſt extentionis ad
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abbr
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coadæquandũ
">coadæquandum</
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ſe eidem ſpatio, compenſatur per multiplicationem, ac re
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petitionem circumuolutionis earum; non ſecus ac qui bre
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uiori, ſed frequentiori paſſu ſimul gradiuntur cum ijs, qui
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longiori, ac tardiori. </
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<
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">Vt dicitur de Iulo cum Aenea patre
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apud Maronem. </
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<
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">Dextræ ſe paruus Iulus implicuit,
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ſequi-turq.
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turque</
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patrem non p aſſibus æquis. </
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<
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">Quæſtio Decima.</
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<
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vr facilius quando ſine pondere eſt, moue
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tur libra, quàm cùm pondus habet? </
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ſimiliq.
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modo rota, & huiuſmodi quippiam, quod gra
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uius quidem eſt, maius autem minore, & le
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uiore? </
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<
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id
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">An quia non ſolum in contrarium,
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quod graue eſt, ſed in obliquum etiam diffi
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culter mouetur? </
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<
s
id
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N144D8
">In contrarium enim ei, ad quod vergit onus,
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mouere difficile eſt: quo autem vergit, eſt facilè: in obliquum
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autem haud quaquam vergit.
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type
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<
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">COMMENTARIVS.</
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<
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">Dvo in vnum collecta quærit hic Ariſtoteles, nempe
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cur facilius moueatur tàm libra ponderibus vacua
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reſpectu ſui ipſius cum pondera ſuſtinet; quàm ro-</
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