Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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N10019
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<
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143
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guntur fricari, vnde non parum circumuolutio retardatur.
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</
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<
s
id
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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;
<
expan
abbr
="
proindeq.
">proindeque</
expan
>
difficilius id præ
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ſtabit: ſicut è contra facilius, quæ maior eſt,
<
expan
abbr
="
paucioribusq.
">paucioribusque</
expan
>
<
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circumuolutionibus indiget. </
s
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<
s
id
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N1448C
">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. </
s
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<
s
id
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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
="
coadæquandũ
">coadæquandum</
expan
>
<
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ſe eidem ſpatio, compenſatur per multiplicationem, ac re
<
lb
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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. </
s
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<
s
id
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">Vt dicitur de Iulo cum Aenea patre
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apud Maronem. </
s
>
<
s
id
="
N144AD
">Dextræ ſe paruus Iulus implicuit,
<
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abbr
="
ſequi-turq.
">ſequi
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turque</
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patrem non p aſſibus æquis. </
s
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</
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<
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id
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type
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head
">
<
s
id
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">Quæſtio Decima.</
s
>
</
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<
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id
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type
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<
s
id
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">C
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vr facilius quando ſine pondere eſt, moue
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tur libra, quàm cùm pondus habet? </
s
>
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="
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">
<
expan
abbr
="
ſimiliq.
">ſimilique</
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>
<
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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? </
s
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<
s
id
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N144D1
">An quia non ſolum in contrarium,
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quod graue eſt, ſed in obliquum etiam diffi
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culter mouetur? </
s
>
<
s
id
="
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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</
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<
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type
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<
s
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">COMMENTARIVS.</
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<
s
id
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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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archimedes
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