Marci of Kronland, Johannes Marcus, De proportione motus, seu regula sphygmica ad celeritatem et tarditatem pulsuum, 1639

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      <text>
        <body>
          <chap id="N10308">
            <subchap1 id="N11B43">
              <p id="N11B58" type="main">
                <s id="N11D03">
                  <pb xlink:href="062/01/056.jpg"/>
                dem maiora ſumit incrementa: quia tamen in quolibet
                  <lb/>
                puncto circuli per lineas fit tangentes, quæ in recurſu
                  <lb/>
                continuó magis ac magis ſunt inclinatæ; erunt in quo­
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                libet puncto recurſus minora huius velocitatis incre­
                  <lb/>
                menta: ita nimirum ut ſi arcus ſumantur æquales, ma­
                  <lb/>
                jor ſit acceſsio velocitatis in arcu primo, quam in arcu
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                ſecundo: & velocitas in arcu circuli collecta minor ve­
                  <lb/>
                locitate in lineà rectà illi arcui æquali, quæ tangens ſit
                  <lb/>
                principii eiuſdem motus circularis. </s>
                <s id="N11D24">Sicuti verò in re­
                  <lb/>
                curſu velocitas continuó & inæqualiter creſcit, ita in
                  <lb/>
                excurſu, quia motus violentus, proportionaliter decre­
                  <lb/>
                ſcit,
                  <expan abbr="fiuntq́">fiuntque</expan>
                ; huius decrementa æqualia illius incremen­
                  <lb/>
                tis, prima nimirum ultimis; propterea quód
                  <expan abbr="utraq́">utraque</expan>
                ;
                  <expan abbr="fiũt">fiunt</expan>
                  <lb/>
                ab eadem grauitate, quæ à principio excurſus per lineas
                  <lb/>
                grauitat magis inclinatas. </s>
                <s id="N11D3F">Quòd ſi ergo ſola grauitas
                  <lb/>
                minuat impulſum, quia in æqualibus à ſtatione interual
                  <lb/>
                lis, ob ſimilem inclinationem, æqualiter grauitat; erunt
                  <lb/>
                ut arcus inter ſe, ita eiuſdem grauitatis impulſus: &
                  <lb/>
                quia impulſus contrarius tollit partem ſibi æqualem,
                  <lb/>
                erunt excurſus & recurſus inter ſe æquales. </s>
                <s id="N11D4C">At verò
                  <lb/>
                quia non ſola grauitas impulſum minuit, ſed etiam in­
                  <lb/>
                clinatio motus; ſicuti enim grauitas extra lineam per­
                  <lb/>
                pendicularem minùs grauitat, ita impulſus extra line­
                  <lb/>
                am ſui motus, cuius terminus eſt veluti centrum, mi
                  <lb/>
                nús impellit ſuum mobile: quód ſi enim funda lapidem </s>
              </p>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
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