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

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    <archimedes>
      <text>
        <body>
          <chap id="N10308">
            <subchap1 id="N10ADC">
              <p id="N10AEF" type="main">
                <s id="N10AFE">
                  <pb xlink:href="062/01/023.jpg"/>
                am rectam, ſed circularem moueri videantur. </s>
                <s id="N10B07">Nihilo­
                  <lb/>
                minus etiam in his, quæ circulariter mouentur, impul­
                  <lb/>
                ſum ad motum rectum inelinare, & non niſi vi ab hy­
                  <lb/>
                pomochlio illatà circumagi facile oſtendemus. </s>
                <s id="N10B10">Ete­
                  <lb/>
                nim eà ratione mouetur totum, quà illius partes, cúm
                  <lb/>
                motus totius ſit ſuarum partium motus: at verò partes
                  <lb/>
                ſingulæ dum circumaguntur, ſi non firmiter cohærent
                  <lb/>
                ſuo hypomochlio, non in circulum, ſed per lineam re­
                  <lb/>
                ctam mouentur: quod quidem in illà rotà verſatili, quà
                  <lb/>
                gemmæ poliuntur, aut in lapide molari licebit experiri:
                  <lb/>
                quòd ſi enim in illà planitie propè centrum arenam,
                  <lb/>
                aut quid ſimile conſtituas, videbis ex illà rotatione
                  <lb/>
                ad circulos ſenſim majores à centro propelli, & demum
                  <lb/>
                excuti. </s>
                <s id="N10B27">Obijcies globum fiſtulà ſtriatà emiſſum velo­
                  <lb/>
                ciſsimè gyrando, & veluti aërem terebrando ad metam
                  <lb/>
                venire,
                  <expan abbr="neq́">neque</expan>
                ; ullum punctum, præterquam centrum, per
                  <lb/>
                lineam rectam, ſed per lineam ſpiralem moueri: quia
                  <lb/>
                nimirum ab illis ſulcis, quibus fiſtula interné excaua­
                  <lb/>
                tur, toto illo tractu reuolutus impulſum colligit circu­
                  <lb/>
                larem: non igitur impulſus neceſſariò ducit per lineam
                  <lb/>
                rectam. </s>
                <s id="N10B3C">Deinde ſi quis velociter currendo ſagittam ja­
                  <lb/>
                culetur, aut lapidem proijciat, quantumuis principium
                  <lb/>
                motus per lineam fiat perpendicularem, non tamen il
                  <lb/>
                lud mobile per lineam rectam, ſed arcuatim ſurſum elu
                  <lb/>
                ctatur: propterea quòd non ad idem punctum, â quo </s>
              </p>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
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