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="N10ADC">
              <p id="N10AEF" type="main">
                <s id="N10E26">
                  <pb xlink:href="062/01/029.jpg"/>
                ſit una, lineæ verò obliquæ infinitæ. </s>
                <s id="N10E45">Confirmatur ex
                  <lb/>
                modo agendi reliquorum agentium naturalium, quæ
                  <lb/>
                non niſi per lineas rectas operantur. </s>
              </p>
            </subchap1>
            <subchap1 id="N10E4C">
              <p id="N10E4D" type="main">
                <s id="N10E4F">
                  <emph type="center"/>
                Propoſitio IV.
                  <emph.end type="center"/>
                </s>
              </p>
              <p id="N10E56" type="main">
                <s id="N10E58">
                  <emph type="italics"/>
                Impulſus in quolibet puncto circuli per lineam fit tangentem.
                  <emph.end type="italics"/>
                </s>
              </p>
              <p id="N10E5F" type="main">
                <s id="N10E61">QVia enim motus eſt rectus per pro: 3. talis autem
                  <lb/>
                eſſe non poteſt in circulo, igitur ſi incipiat ab ali­
                  <lb/>
                quo puncto circuli, cadet immediaté poſt illud pun­
                  <lb/>
                ctum extra peripheriam illius circuli: non poteſt au­
                  <lb/>
                tem cadere intra circulum, cadet igitur extra circulum.
                  <lb/>
                Probatur, punctum circuli immediatè ante contactum
                  <lb/>
                verbi gratia
                  <emph type="italics"/>
                a
                  <emph.end type="italics"/>
                impellit
                  <emph type="italics"/>
                o
                  <emph.end type="italics"/>
                ad motum rectum:
                  <expan abbr="punctũ">punctum</expan>
                ergo
                  <lb/>
                immediatè poſt illum contactum erit cum duobus pun
                  <lb/>
                ctis
                  <emph type="italics"/>
                a
                  <emph.end type="italics"/>
                &
                  <emph type="italics"/>
                o
                  <emph.end type="italics"/>
                in lineà rectà, aut certè ad hujus rectitudinem
                  <lb/>
                quam proximè fieri poteſt, accedet: at verò intra peri­
                  <lb/>
                pheriam circuli nullum eſſe poteſt punctum, quod cum
                  <lb/>
                duobus illis punctis
                  <emph type="italics"/>
                a
                  <emph.end type="italics"/>
                &
                  <emph type="italics"/>
                o
                  <emph.end type="italics"/>
                ſit in lineà rectà, aut ad natu­
                  <lb/>
                ram lineæ rectæ quam proximè accedat, verum ad ma­
                  <lb/>
                iorem curuitatem: cùm neceſſariò ſit in peripheria ali­
                  <lb/>
                cujus circuli minoris. </s>
                <s id="N10EA8">Cadat enim, ſi fieri poteſt, intra </s>
              </p>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
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