Stevin, Simon, Mathematicorum hypomnematum... : T. 4: De Statica : cum appendice et additamentis, 1605

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          <head xml:id="echoid-head12" xml:space="preserve">PARS PRIOR</head>
          <head xml:id="echoid-head13" xml:space="preserve">DE DEFINITIONIBVS.</head>
          <head xml:id="echoid-head14" xml:space="preserve">I DEFINITIO.</head>
          <p>
            <s xml:id="echoid-s28" xml:space="preserve">Statica eſt quæ ponderis & </s>
            <s xml:id="echoid-s29" xml:space="preserve">gravitatis corporum ratio-
              <lb/>
            nes, proportiones, & </s>
            <s xml:id="echoid-s30" xml:space="preserve">qualitates interpretatur.</s>
            <s xml:id="echoid-s31" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div9" type="section" level="1" n="8">
          <head xml:id="echoid-head15" xml:space="preserve">DECLARATIO.</head>
          <p>
            <s xml:id="echoid-s32" xml:space="preserve">QVemadmodum Geometria figurarum magnitudi-
              <lb/>
            nes non autem gravitates conſiderat, illas æ quales
              <lb/>
            vel inæquales ſolummodo judicans, quarum ma-
              <lb/>
            gnitudines æquales vel inæquales ſunt: </s>
            <s xml:id="echoid-s33" xml:space="preserve">Ita contra
              <lb/>
            Statica gravitates earundem nõ magnitudines ex-
              <lb/>
            pendit, easq́ue æquales vel inæquales habet, qua-
              <lb/>
            rum gravitates & </s>
            <s xml:id="echoid-s34" xml:space="preserve">pondera æqualia, vel inæqualia
              <lb/>
            ſunt. </s>
            <s xml:id="echoid-s35" xml:space="preserve">Et quemadmodum Geometriæ munus eſt in
              <lb/>
            Rationes, Proportiones, & </s>
            <s xml:id="echoid-s36" xml:space="preserve">affectiones Magnitu-
              <lb/>
            dinum inquirere: </s>
            <s xml:id="echoid-s37" xml:space="preserve">ita Statices eſt Rationes, Pro-
              <lb/>
            portiones, & </s>
            <s xml:id="echoid-s38" xml:space="preserve">affectiones gravitatum ſive ponde-
              <lb/>
            rum interpretari; </s>
            <s xml:id="echoid-s39" xml:space="preserve">quænoſtræ ſcriptionis finis eſt, & </s>
            <s xml:id="echoid-s40" xml:space="preserve">ſcopus.</s>
            <s xml:id="echoid-s41" xml:space="preserve"/>
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          <head xml:id="echoid-head16" xml:space="preserve">2 DEFINITIO.</head>
          <p>
            <s xml:id="echoid-s42" xml:space="preserve">Gravitas corporis eſt potentia deſcenſus in dato loco.</s>
            <s xml:id="echoid-s43" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div11" type="section" level="1" n="10">
          <head xml:id="echoid-head17" xml:space="preserve">DECLARATIO.</head>
          <p>
            <s xml:id="echoid-s44" xml:space="preserve">Gravitas & </s>
            <s xml:id="echoid-s45" xml:space="preserve">levitas, quam in corpore ineſſe vulgò dicimus, non eſt propria
              <lb/>
            & </s>
            <s xml:id="echoid-s46" xml:space="preserve">eſſentialis ejus forma, ſed ex relatione ad aliud nata, cujus pleniorem decla-
              <lb/>
            rationem alii loco ac tempori deſtinavimus. </s>
            <s xml:id="echoid-s47" xml:space="preserve">Nam nonnulla Materia, & </s>
            <s xml:id="echoid-s48" xml:space="preserve">cor-
              <lb/>
            pora in aëre gravia, in aquâ levia, in aëre vero levia, alibi eſſegravia depre-
              <lb/>
            henduntur. </s>
            <s xml:id="echoid-s49" xml:space="preserve">Cum itaque dicimus lignum centum pondo eſſe, potentiam
              <lb/>
            deſcenſus intelligi volumus in dato loco, hoceſt, in loco ſubjecto ubi ponde-
              <lb/>
            ratum eſt.</s>
            <s xml:id="echoid-s50" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s51" xml:space="preserve">Ex definitionis conſectario, levitatem corporum potentiam elationis in al-
              <lb/>
            tum eſſe intelligimus; </s>
            <s xml:id="echoid-s52" xml:space="preserve">ſed in dato loco, naturâ enim quodvis corpus grave eſt.</s>
            <s xml:id="echoid-s53" xml:space="preserve"/>
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          <head xml:id="echoid-head18" xml:space="preserve">3 DEFINITIO.</head>
          <p>
            <s xml:id="echoid-s54" xml:space="preserve">Nota gravitas eſt quæ notâ ponderitate exprimitur.</s>
            <s xml:id="echoid-s55" xml:space="preserve"/>
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        <div xml:id="echoid-div13" type="section" level="1" n="12">
          <head xml:id="echoid-head19" xml:space="preserve">DECLARATIO.</head>
          <p>
            <s xml:id="echoid-s56" xml:space="preserve">Vt cum corpus vel gravitatem ſex librarum, octo marcarum, vel trium un-
              <lb/>
            ciarum, & </s>
            <s xml:id="echoid-s57" xml:space="preserve">c. </s>
            <s xml:id="echoid-s58" xml:space="preserve">eſſe dicimus; </s>
            <s xml:id="echoid-s59" xml:space="preserve">quod hujuſmodi notâ ponderitate ſit definita, no-
              <lb/>
            tam gravitatem appellamus.</s>
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