Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627
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              ipſum mobile,
                <expan abbr="proindeq.">proindeque</expan>
              impetu incuſſo, motum eius acce­
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              lerare; ex qua acceleratione velocior adhuc redditur no­
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              uus accurſus, quo rurſus mobile magis impellitur, & ſic
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              deinceps. </s>
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                <expan abbr="Citaturq.">Citaturque</expan>
              pro hac ſententia Ariſtoteles 3. de cæ­
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              lo tex. 28. vbi loquendo de diſtinctione motus naturalis à
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              violento, & acceleratione vtriuſque inquit: Ad ambo au­
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              tem tanquam inſtrumento vtitur aere: nempe ipſum princi­
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              pium à quo principaliter prouenit motus. </s>
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                <expan abbr="Rurſumq.">Rurſumque</expan>
              paulò
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              inferius loquens adhuc de aere, ſubdit: Veluti enim impri­
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              mens tradit vtrique. </s>
              <s id="N17423">Impulſum ſcilicet vtrique mobili ad
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              proprium motum impertiendo. </s>
              <s id="N1742A">Verum ex hoc loco ad ſum­
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              mum tantum colligitur de mente Ariſtotelis, aerem ad
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              vtrunque motum perficiendum, videlicet tam naturalem,
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              quàm violentum deſeruire, ac tanquam inſtrumentum con­
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              currere. </s>
              <s id="N17435">Alioquin præcisè loquendo de maiori celeritate
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              motus naturalis deorſum quò proprius graue ad imum ac­
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              ceſſerit, potius ibidem docet Philoſophus, eam ab adiuncta
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              virtute præternaturali oriri; inquiens, eum motum, qui eſt
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              ſecundum naturam (vt in lapide dum fertur deorſum) velo­
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              ciorem fieri ab eo, qui eſt ſecundum potentiam: vocat au­
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              tem potentiam ipſam virtutem motiuam, quæ per violen­
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              tiam imprimitur, aut producitur in corporibus, vt patet ex
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              contextu. </s>
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              <s id="N1744A">Quare dicendum eſt ex eo facilius, ac velocius grauia
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              deorſum moueri in progreſſu, quanto magis à principio mo­
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              tus diſceſſerint; quia nimirum per ipſum motum naturalem
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              augetur in eis virtus motiua, qua feruntur in proprium lo­
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              cum. </s>
              <s id="N17455">Producunt enim in ſe impetum, cumque ſucceſsiuè
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              ſemper magis ac magis intendunt per grauitatem tanquam
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              per formam principaliter agendi. </s>
              <s id="N1745C">Ita vt poſt primam grauis
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              motionem deorſum, non modo duplicetur deinceps prin­
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              cipium ipſius motionis, ſeu virtus motiua, per productionem
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              impetus in eundem locum tendentis; ſed creſcente diſtan­
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              tia creſcat pariter impetus, & cum eo velocitas in immen­
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              ſum. </s>
              <s id="N17469">Quam ſententiam expreſsè fuiſſe Ariſtotelis decla­
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              rant tum eius verba proximè a nobis expoſita, tum ea quæ </s>
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