Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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    <archimedes>
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          <chap>
            <p type="main">
              <s id="s.002266">
                <pb pagenum="437" xlink:href="010/01/445.jpg"/>
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            <p type="margin">
              <s id="s.002267">
                <margin.target id="marg583"/>
              Cap. 10. de
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              æquitempo­
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              ranea natu­
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              rali veloci­
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              tate
                <expan abbr="grauiũ">grauium</expan>
              .</s>
            </p>
            <p type="main">
              <s id="s.002268">
                <emph type="center"/>
              PROP. CCVI.
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              </s>
            </p>
            <p type="main">
              <s id="s.002269">
                <emph type="center"/>
                <emph type="italics"/>
              Idem aliter confirmatur.
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                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.002270">ET profectò cùm hìc non agatur de vacuo, & ple­
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              no, quatenùs vacuum, & plenum ſunt, ſed qua­
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              tenùs motum impediunt; propterea reſpectus, ſeù
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              proportio inter plenum, & vacuum conſideratur in
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              ordine ad impedimentum, quatenùs priuatio, & ca­
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              rentia impedimenti ipſius vacui nullam
                <expan abbr="proportionẽ">proportionem</expan>
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              habet ad verum, & reale
                <expan abbr="impedimentũ">impedimentum</expan>
              à medio ple­
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              no productum, ſicuti inter nihilum, & ens nulla da­
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              tur proportio. </s>
            </p>
            <p type="main">
              <s id="s.002271">Videamus modò an velocitas eiuſdem mobilis
                <expan abbr="tã-topere">tan­
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                topere</expan>
              variati debeat in vacuo, & in pleno, vt reſul­
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              tantes velocitates debeant infinitè inter ſe diſtare, ac
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              differre, quem ad modum carentia impedimenti, ſeù
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              nihilum ad impedimentum ipſum reale nullam pro­
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              portionem habet. </s>
              <s id="s.002272">Et procùl dubio quoad
                <expan abbr="carentiã">carentiam</expan>
              ,
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              & priuationem impedimenti pertinet, perindè eſt ſi
                <lb/>
              mobile in vacuo feratur, ac ſi in aliquo fluido, quod
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              eius motum nil prorsùs impediat, nec retardet, & ve­
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              locitatem eius non imminuat præcisè, vt vacuum nil
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              ei obſiſtit; hoc autem præſtat aer ipſe motus, & à
                <expan abbr="vẽ-to">ven­
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                to</expan>
              agitatus ad eaſdem partes, versùs quas mobile fer­
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              tur, qui præterea tanta velocitate ad eaſdem partes
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              fugiat, quanta ab ipſo mobile perſequitur. </s>
              <s id="s.002273">tunc qui­
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              dem, vt dictum eſt, nil prorsùs ab aere fluente, ſeù
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              vento illo ſecundo impeditur, vel retardatur fluxus </s>
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          </chap>
        </body>
      </text>
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