Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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              non quidem ſiniſtrorſum, ſed antrorſum præualet commouere.
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              <s id="N13CB1">Id quod clariùs hic licebit inſpicere in delineata figura eiſdem
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              fermè litteris, quibus ſuperior conſignata. </s>
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            <figure id="id.005.01.135.1.jpg" xlink:href="005/01/135/1.jpg" number="49"/>
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              <s id="N13CBD">Cæterum ex his
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              patet, quàm rectè
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              Ariſtoteles docuerit
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              ex eo nautas veli
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              partem verſus
                <expan abbr="prorã">proram</expan>
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              pedem facere, ac re­
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              laxare, hoc eſt ex eo
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              partem veli inferio­
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              rem
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              pedem
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              verſus
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              collo­
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              care, ac funibus mi­
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              nus adducere; ſupe­
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              riorem verò quæ
                <expan abbr="lõ-gè">lon­
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                gè</expan>
              maior eſt verſus
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              puppim retrahere, &
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              alligare, quia ſi vtramque partem veli ęquatameſſe paterentur,
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              malus vtrinque propulſus æquè etiam propelleretur. </s>
              <s id="N13CF0">Cumque
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              propulſus totus eſſet in directum à latere dextro, vel ſiniſtro,
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              nauis per illam pergere non poſſet antrorſum. </s>
              <s id="N13CF7">Accedit quia
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              ſi æqualis, vel maior impetus incuteretur in proram, non tam
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              facilè temo illam poſſet retrahere in contrarium. </s>
              <s id="N13CFE">Siquidem
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              magis diſtaret à fulcimento, ac centro, quod conſtituitur in
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              cuſpide puppis. </s>
              <s id="N13D05">Vnde quo magis velum appropinquatur pup­
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              pi, eo magis temo præualet contra impulſum ventorum ad
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              conuertendam nauim obliquè. </s>
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              <s id="N13D0E">Quod autem ait Piccolomineus, in hac motione nauis cari­
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              nam vectis vicem obtinere, quæ centro grauitatis ipſius nauis
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              tanquam fulcimento innixa mare mouente, ac impellente te­
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              monem, ventum in prora ſuſtineat tanquam onus, valde ambi­
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              guum eſt. </s>
              <s id="N13D1A">Tum quia non minus ventus per velum, quàm ma­
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              re per temonem poteſt habere rationem potentiæ mouentis.
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              </s>
              <s id="N13D20">Tum etiam quia ventus præcipuè non ſuſtinetur in prora, ſed
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              potius in parte veli, quæ vergit ad puppim, vt dictum eſt. </s>
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