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

Table of figures

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                motum unius minuti; propterea quòd latus
                  <emph type="italics"/>
                ca
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                ad latus
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                  <emph type="italics"/>
                ba
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                eandem habeat rationem, quam latus
                  <emph type="italics"/>
                ic
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                ad latus
                  <emph type="italics"/>
                hb,
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                ac proinde illorum quadrata in eadem
                  <expan abbr="quoq́">quoque</expan>
                , ratione,
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                nimirum duplicata. </s>
                <s id="N11489">
                  <expan abbr="Itaq́">Itaque</expan>
                ; ſi quadratum lateris
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                ab,
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                hoc
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                eſt primi minuti, ſubtrahas â quadrato
                  <emph type="italics"/>
                ac
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                ſecundi minu­
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                ti, numerus reliquus dabit velocitatem motus in eodem
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                minuto: ut ſi cubitum unum
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                vg.
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                perambulet in primo
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                minuto, hujus quadratum, ideſt unum, ab illius quadra
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                to, id, eſt â quatuor ſubtractum relinquit tria totidem
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                cubitorum illi ſpatio, per quod
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                a
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                mouetur in minuto 2.
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                tribuenda. </s>
                <s id="N114B5">Similiter quia 3. minutis conficit cubitos 9.
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                ablato ex his quadrato ſecundi minuti, numerus reli­
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                quus dabit velocitatem 5. cubitorum, qui minuto 3. de­
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                bentur. </s>
                <s id="N114BE">Rurſum â numero 4. minuti in ſe ducto, ideſt
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                16. ablatis 9. quadrato tertij minuti rem anet numerus 7.
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                pro 4. minuto: totidem ergo cubitorum ſpatium trans­
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                mittit mobile
                  <emph type="italics"/>
                a
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                in minuto quarto. </s>
                <s id="N114CD">Quód ſi angulus
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                augmenti major ſit aut minor ſemiſſe anguli recti, ut
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                angulus
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                qag.
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                aut
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                rag,
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                quod quidem contingit, cùm vir­
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                tus impulſiua magis aut minùs eſt intenſa, tum quidem
                  <lb/>
                illa virtus magis perfecta ex illo puncto continuò majo
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                ra ſumit incrementa: eadem tamen demonſtratio,
                  <expan abbr="atq́">atque</expan>
                ;
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                eadem eſt proportio
                  <expan abbr="utrobiq́">utrobique</expan>
                ;, propterea quòd parallelo­
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                gramma in proportione
                  <expan abbr="quoq́">quoque</expan>
                ; ſint duplicatá ſuorum
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                laterum ſimul ſumptorum.| </s>
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