Gassendi, Pierre, De motu impresso a motore translato epistulae duae, 1642

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="id.000390">
                <pb pagenum="39" xlink:href="027/01/046.jpg"/>
              motum non violentum, ſed naturalem. </s>
              <s id="id.000391">Attamen id
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              videtur primum conſideratione dignum, ſi ex duobus
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              his motibus, perpendiculari nempe, & horizontali, qui
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              obliquum illum componunt, alter habendus natu­
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              ralis ſit, illum horizontalem potiùs, quàm perpen­
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              dicularem eſſe. </s>
              <s id="id.000392">Id verò patet; quia cùm projectum
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              pars fuerit aliqua totius, quòd ſecundum horizon­
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              tem, ſeu circulariter mouebatur, ideò ad eius imi­
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              tationem mouetur circulariter, ac naturaliter proin­
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              de, & prorsùs æquabiliter; adeò vt, quantumcùm­
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              que motus perpendicularis increſcat ſemper, aut de­
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              creſcat; ipſe tamen horizontalis vno ſemper tenore
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              fluat, inuariabiliterque procedat. </s>
              <s id="id.000393">Ac fortè res mi­
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              nùs mirabilis eſſet, de impreſſione ex motu terræ, ſi
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              quis vellet ipſam ſupra axem ſuum mobilem ſuppo­
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              nere: ſiquidem lapis dici poſſet moueri vniformiter,
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              ob ſpontaneam conſequutionem, ad vniformem
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              motum totius; ſeu cum eo cohærens, ſeu abiunctus
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              foret; Sed mirabile ſanè eſt de impreſſione ex naui,
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              equo, curru, aliave re, aut ex ſola manu: quandò
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              lapis non habet cum rebus eiuſcemodi, motibuſve
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              earum parem relationem. </s>
              <s id="id.000394">Ex quo par eſt exiſtimare,
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              motum horizontalem, à quacúmque cauſa is fiat, ex
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              ſua natura perpetuum fore, niſi cauſa aliqua interue­
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              nerit, quæ mobile abducat, motumque exturbet.
                <lb/>
              </s>
              <s id="id.000395">Id, vt minùs abſurdum habeas, concipiendum eſt
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              mobile, quod tantúndem ſeſe reducat, quantùm
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              abductum fuerit. </s>
              <s id="id.000396">Huiuſmodi autem eſſe poteſt ex­
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              quiſitus, & vniformis materiæ globus, ſi volui ipſum
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              imagineris ſupra horizontem, ſeu ambitum terræ, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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