Marci of Kronland, Johannes Marcus, De proportione motus figurarum recti linearum et circuli quadratura ex motu, 1648

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="063/01/090.jpg"/>
              men illius partes pervadit. </s>
              <s>In corpore autem vaſtæ molis,
                <lb/>
              cuiuſmodi tellus, eò
                <expan abbr="uſq;">uſque</expan>
              procedit, dum illâ extenuatione
                <lb/>
              prorſus inſenſilis euadat: & cùm nulla eſt reciprocatio,
                <expan abbr="neq;">neque</expan>
                <lb/>
              vibratio contingit. </s>
              <s>Tremere tamen interdum ſolum ex in­
                <lb/>
              genti plagâ conſtat: cùm partes vehementer preſſæ reaſſur­
                <lb/>
              gunt. </s>
              <s>At verò
                <expan abbr="quouſq;">quouſque</expan>
              una
                <expan abbr="quæq;">quæque</expan>
              plaga ſe extendat, necdum
                <lb/>
              liquet: conſtat ſanè longiſſimè protendi: in magnâ enim di­
                <lb/>
              ſtantiâ auribus terræ admotis ſonum etiam non magnum per­
                <lb/>
              cipiunt excubitores. </s>
              <s>Eſt tamen magna differentia pro qua­
                <lb/>
              litate terræ: cavernoſa enim
                <expan abbr="multúmq;">multúmque</expan>
              aëris continens ſo­
                <lb/>
              num longiùs protendit, quàm uliginoſa & paluſtris: & quæ
                <lb/>
              continua eſt ac veluti concatenata, quàm ſabuloſa & interciſa. </s>
            </p>
            <p type="main">
              <s>Notandum Quartò, impulſum naturâ ſuâ lineam rectam &
                <lb/>
              viam ſequi percutientis.
                <expan abbr="itaq;">itaque</expan>
              ſi perpendiculariter incidat pla­
                <lb/>
              no motum ſeu impulſum producit in directum, ſi nihil obſtat. </s>
              <lb/>
              <s>At cùm reſiſtentia maior eſt ex unâ, quàm aliâ parte: ut cùm
                <lb/>
              trabem longiorem percutimus non in centro gravitatis, ſed in
                <lb/>
              parte uni extremo propiore: tum motus non fit in directum,
                <lb/>
              ſed circularis: cuius centrum alterum extremum quieſcens,
                <lb/>
              & à plagâ magis remotum. </s>
              <s>Quòd ſi percuſſio fiat in centro:
                <lb/>
              tametſi ad partes remotiores à plagâ minor impulſus ſe exten­
                <lb/>
              dat; quia tamen centrum gravitatis æquationem inducit;
                <lb/>
              omnes æqualiter & in directum moventur. </s>
              <s>In Sphærâ autem
                <lb/>
              ſeu globo impetus à plagâ in centrum dirigitur, ſi moveri de­
                <lb/>
              beat: quod alioqui non eſt neceſſarium:
                <expan abbr="quandoq;">quandoque</expan>
              enim pla­
                <lb/>
              ga ex obliquo illius partem decerpit. </s>
              <s>At ſi globus alium
                <lb/>
              percutiat
                <expan abbr="quacunq;">quacunque</expan>
              ratione, neceſlariò hæc plaga centrum ſpe­
                <lb/>
              ctat. propterea, quòd
                <expan abbr="utrumq;">utrumque</expan>
              centrum
                <expan abbr="atq;">atque</expan>
              illorum plaga ſit in
                <lb/>
              eadem lineâ rectâ. </s>
              <s>Nulla tamen plaga ex obliquo facta </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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