Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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          <chap id="N10019">
            <p id="N1071F" type="main">
              <s id="N10721">
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              teriale adæquatum facultatis mechanicæ eſſe grauia & leuia,
                <lb/>
              ſeu quantitatem ponderis ipſorum, ac virtutis qua moueri
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              debent aut detineri. </s>
              <s id="N1072D">Ratio autem eſt, quia in ſcientijs, illud
                <lb/>
              dicitur ſubiectum materiale adæquatum, quod complectitur
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              omnia de quibus in ſcientia tractatur; omne autem de quo in
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              hac ſcientia tractatur, reducitur ad corpus aliquod graue, aut
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              leue mouendum aut detinendum, ſiue ad quantitatem virtu­
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              tis qua moueri debet aut detineri;
                <expan abbr="Proindeq.">Proindeque</expan>
              ipſa grauia &
                <lb/>
              leuia vt ſic,
                <expan abbr="ſimulq.">ſimulque</expan>
              virtus motiua ac detentiua illorum, me­
                <lb/>
              ritò huius facultatis mechanicæ materiale ſubiectum adæ­
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              quatum deſignatur. </s>
            </p>
            <p id="N10748" type="main">
              <s id="N1074A">Secundo vero non minus facile conſtabit, obiectum forma­
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              le eiuſdem facultatis eſſe admirabilem, & artificioſam mobi­
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              litatem, aut quietèm ipſorum grauium, & leuium, abſtrahen­
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              do à motione & quiete naturali aut violenta, vt quæ per im­
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              petum impreſſum, aut detentionem fieri conſueuit. </s>
              <s id="N10755">Conſtat
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              autem ex eo quod obiectum formale cuiuſque facultatis, aut
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              ſcientiæ, eſt ipſa ratio ſub qua de proprio ſubiecto materiali
                <lb/>
              agitur in tali ſcientia: ratio autem ſub qua in mechanica fa­
                <lb/>
              cultate agitur de graui & leui,
                <expan abbr="virtuteq.">virtuteque</expan>
              motiua aut detentiua
                <lb/>
              eorum, eſt ipſa artificioſa mobilitas ſecundum
                <expan abbr="locũ">locum</expan>
              , & quies
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              conſequenda ipſorum, mediantibus præceptis tradendis in
                <lb/>
              eadem ſcientia, vt per ſe patet ex fine explicato, ad quem
                <lb/>
              tota hæc ſcientia dirigitur, & ordinatur. </s>
              <s id="N10770">Ea ergo admirabi­
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              lis,
                <expan abbr="artificioſaq.">artificioſaque</expan>
              mobilitas, iure cenſeri debet formale obie­
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              ctum huius facultatis mechanicæ. </s>
            </p>
            <p id="N1077B" type="main">
              <s id="N1077D">Quo tandem fit tertio, vt obiectum totale, & adæquatum
                <lb/>
              mechanicæ facultatis in vniuerſum, ſint ipſa grauia & leuia
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              prout artificiosè mobilia, & vt ita dicam quieſcibilia,
                <expan abbr="ſimulq.">ſimulque</expan>
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              omnia quæ de ipſis demonſtrantur in hac eadem ſcientia.
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              </s>
              <s id="N1078B">Quod certe non obſcurè ſumitur ex Pappo Alexandrino lib.
                <lb/>
              8. ſuarum Collectionum, vbi mechanicam contemplationem
                <lb/>
              docet verſari circa ſtatum & lationem corporum,
                <expan abbr="motumq.">motumque</expan>
                <lb/>
              ſecundum locum in vniuerſo, vt eorum quæ natura fiunt, cau­
                <lb/>
              ſas reddat; eorum verò quæ à natura ſua diſcedere coguntur
                <lb/>
              extra propria loca, in contrarios motus per ſua theoremata </s>
            </p>
          </chap>
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