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

Table of figures

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                <s id="N13D6C">
                  <emph type="center"/>
                  <emph type="italics"/>
                Problema
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                  <emph.end type="center"/>
                </s>
              </p>
              <p id="N13D77" type="main">
                <s id="N13D79">
                  <emph type="italics"/>
                Tribus globis in
                  <expan abbr="quacunq́">quacunque</expan>
                ; diſtantia extra lineam rectam aſſum
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                ptis, punctum determinare in globo ſecundo, à quo reflexus primus
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                percutiat tertium.
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                </s>
              </p>
              <p id="N13D88" type="main">
                <s id="N13D8A">IN figurà ſubiectà aſſumantur globi
                  <emph type="italics"/>
                s.p.r.
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                in diſtantiâ
                  <lb/>
                  <emph type="italics"/>
                sp.pr.rs:
                  <emph.end type="italics"/>
                  <expan abbr="oporteatq́">oporteatque</expan>
                ; in globo
                  <emph type="italics"/>
                p
                  <emph.end type="italics"/>
                punctum determina­
                  <lb/>
                re, ad quod globus
                  <emph type="italics"/>
                s
                  <emph.end type="italics"/>
                allidens,
                  <expan abbr="indeq́">indeque</expan>
                ; reflexus percutiat
                  <lb/>
                globum
                  <emph type="italics"/>
                r.
                  <emph.end type="italics"/>
                Tangant illos globos lineæ
                  <emph type="italics"/>
                ac. bd
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                in punctis
                  <lb/>
                  <emph type="italics"/>
                a.c. b.d,
                  <emph.end type="italics"/>
                & diuidantur bifariam in punctis
                  <emph type="italics"/>
                e
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                &
                  <emph type="italics"/>
                f;
                  <emph.end type="italics"/>
                à quibus in
                  <lb/>
                circulum
                  <emph type="italics"/>
                p
                  <emph.end type="italics"/>
                excurrant lineæ rectæ
                  <emph type="italics"/>
                eg.fg.
                  <emph.end type="italics"/>
                ſe interſecantes
                  <lb/>
                in puncto reflexionis
                  <emph type="italics"/>
                g,
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                eo modo, quo docent Optici in­
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                uento, & producantur
                  <expan abbr="utrinq́">utrinque</expan>
                in
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                k.l,
                  <emph.end type="italics"/>
                &
                  <emph type="italics"/>
                h. i;
                  <emph.end type="italics"/>
                dico
                  <expan abbr="punctũ">punctum</expan>
                  <lb/>
                  <emph type="italics"/>
                g
                  <emph.end type="italics"/>
                eſſe illud punctum, â quo globus
                  <emph type="italics"/>
                s
                  <emph.end type="italics"/>
                reflexus percutiat
                  <lb/>
                globum
                  <emph type="italics"/>
                r.
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                Quia enim angulus
                  <emph type="italics"/>
                egd
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                angulo
                  <emph type="italics"/>
                fgc
                  <emph.end type="italics"/>
                per con­
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                ſtructionem, & angulus
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                egh
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                angulo
                  <emph type="italics"/>
                fgk
                  <emph.end type="italics"/>
                ad verticem eſt
                  <lb/>
                æquali
                  <emph type="italics"/>
                s
                  <emph.end type="italics"/>
                ; ablatis ex his illis erunt anguli reliqui
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                hgd. kge
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                  <lb/>
                æquales: linea ergo ſubtenſa
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                hg
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                eſt æqualis lineæ
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                kg.
                  <emph.end type="italics"/>
                &
                  <lb/>
                quia linea
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                fd
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                lineæ
                  <emph type="italics"/>
                fb,
                  <emph.end type="italics"/>
                & angulus
                  <emph type="italics"/>
                dfg
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                eſt æqualis angulo
                  <lb/>
                  <emph type="italics"/>
                bfn,
                  <emph.end type="italics"/>
                erit corda
                  <emph type="italics"/>
                gh
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                æqualis cordæ
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                ni.
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                Similiter oſtende­
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                mus cordam
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                gk
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                æqualem cordæ
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                ml.
                  <emph.end type="italics"/>
                Ducatur ergo per
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                contactum â centro
                  <emph type="italics"/>
                p
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                linea
                  <emph type="italics"/>
                pq,
                  <emph.end type="italics"/>
                  <expan abbr="atq́">atque</expan>
                , ex
                  <emph type="italics"/>
                q
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                circulus de­
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                ſcribatur æqualis circulo
                  <emph type="italics"/>
                s,
                  <emph.end type="italics"/>
                tangens priorem in
                  <emph type="italics"/>
                g,
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                  <expan abbr="agaturq́">agaturque</expan>
                ;
                  <lb/>
                linea
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                qr
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                parallela lineæ
                  <emph type="italics"/>
                gi
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                : quòd ſi ergo globus
                  <emph type="italics"/>
                s
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                motu ſui </s>
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