Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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        <body>
          <chap id="N10019">
            <p id="N13ED7" type="main">
              <s id="N13ED9">
                <pb pagenum="131" xlink:href="005/01/139.jpg"/>
              des, & cubi. </s>
              <s id="N13EE7">Prima eſt, quia minima ſui parte planum con­
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              tingunt hoc eſt minori, quam cuiuſlibet alterius figuræ cor­
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              pora, reſpectu, verbi gratia ſphæræ, quæ planum tangit in
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              puncto. </s>
              <s id="N13EF0">Secunda verò eſt, quia hoc pacto non offendunt, aut
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              impingunt niſi ſcilicet rarius, ac difficilius; A terra enim ſe­
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              motus eſt angulus, inquit Ariſtoteles, nimirum angulum
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              contingentiæ, ſeu contactus, quia poſt punctum contingen­
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              tiæ, totum latus curuilineum ipſorum corporum orbicula­
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              rium, quod cum plano conſtituit huiuſmodi angulum, è ter­
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              ra eleuatur; ac propterea minus impingunt in offendicula,
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              quàm alia corpora, quorum latera
                <expan abbr="">non</expan>
              ſtatim poſt minimum
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              contactum eleuantur, ſed ipſi plano, ſeu terræ adhærent.
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              </s>
              <s id="N13F08">Tertia cauſa eſt, nam huiuſmodi corpora cuicunque ob­
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              uient offendiculo, illud pariter nonniſi ſecundum puſillam
                <lb/>
              ſui partem attingunt, eadem ratione, qua planum, ſeu ſolum
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              ſuper quod ipſa mouentur, ſecus, ac rectilineam figuram ha­
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              bentia, quæ ſemper ſua rectitudine ſecundum magnam, vel
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              ſaltem maiorem partem contingunt. </s>
            </p>
            <p id="N13F15" type="main">
              <s id="N13F17">Ad hæc quartam cauſam addit Ariſtoteles. </s>
              <s id="N13F1B">Nam (inquit)
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              quò nutat pondus, eo motor mouet. </s>
              <s id="N13F20">Hoc eſt, quia motor
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              dum huiuſmodi corpora rotunda, vel ſphærica ſecundum
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              abſidem mouet, eo profectò impellit, quo ſtatim ipſorum
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              pondus propendit ſiue inclinat. </s>
              <s id="N13F29">Etenim ſi conſtituatur ſu­
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              per planum AB horizonti
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                <figure id="id.005.01.139.1.jpg" xlink:href="005/01/139/1.jpg" number="50"/>
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              paralellum erecta aliqua
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              rota, vt CDEF tanquam
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              circulus, eius diameter à
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              contactu plani vbi C per­
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              pendiculariter ad angulos
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              rectos per centrum ſupra
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              traſcendens ad D, totam
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              rotam eiuſque pondus in
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              duas partes æquales diſtri­
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              buet, nempe in DFC, &
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              DEC.
                <expan abbr="Eritq.">Eritque</expan>
              ipſa rota in </s>
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          </chap>
        </body>
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