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

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