Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1

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            <s xml:id="echoid-s8127" xml:space="preserve">
              <pb o="213" file="0297" n="324" rhead="MATHEMATICA. LIB. II. CAP. III."/>
            æneæ A inſeritur; </s>
            <s xml:id="echoid-s8128" xml:space="preserve">operculo ligneo O hæc obtegitur, ita
              <lb/>
            ut a veſica ſuſtineatur; </s>
            <s xml:id="echoid-s8129" xml:space="preserve">pondus P centum, aut centum & </s>
            <s xml:id="echoid-s8130" xml:space="preserve">
              <lb/>
            quinquaginta librarum, etiam majus abhiberi poteſt, ſuper-
              <lb/>
            imponitur, quo neque ovum frangitur, neque ceræ figura
              <lb/>
            ullo modo mutatur.</s>
            <s xml:id="echoid-s8131" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8132" xml:space="preserve">Ne quidem guttæ cujuſcunque fluidi figura, preſſione alte-
              <lb/>
              <note position="right" xlink:label="note-0297-01" xlink:href="note-0297-01a" xml:space="preserve">746.</note>
            rius fluidi ab omni parte æquali, mutari poteſt. </s>
            <s xml:id="echoid-s8133" xml:space="preserve">Sit gutta fi-
              <lb/>
              <note position="right" xlink:label="note-0297-02" xlink:href="note-0297-02a" xml:space="preserve">TAB. XXVIII.
                <lb/>
              fig. 6.</note>
            guræ irregularis A, quæ alio fluido ab omni parte æquali-
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            ter prematur. </s>
            <s xml:id="echoid-s8134" xml:space="preserve">Directio preſſionis in omnibus punctis eſt
              <lb/>
              <note position="right" xlink:label="note-0297-03" xlink:href="note-0297-03a" xml:space="preserve">747.</note>
            perpendicularis ad ſuperficiem; </s>
            <s xml:id="echoid-s8135" xml:space="preserve">quod ſi negetur, reſolven-
              <lb/>
            da erit preſſio in duas , quarum una perpendiculariter
              <note symbol="*" position="right" xlink:label="note-0297-04" xlink:href="note-0297-04a" xml:space="preserve">229.</note>
            gat ad ſuperficiem, alia juxta directionem ſuperficiei paral-
              <lb/>
            lelam, quæ ſecunda cum in ſuperficiem non agat, premitur
              <lb/>
            gutta illâ ſolâ, cujus directio perpendicularis eſt ad ſuperfi-
              <lb/>
            ciem. </s>
            <s xml:id="echoid-s8136" xml:space="preserve">Prematur punctum B, guttula preſſa quaquaverſum
              <lb/>
            æquali cum vi premit, & </s>
            <s xml:id="echoid-s8137" xml:space="preserve">guttæ minores ſingulæ preſſæ eo-
              <lb/>
            dem modo premunt, ita ut preſſio ſtatim per integram gut-
              <lb/>
            tam datam diſpergatur, quare particula ut D, quæ in gut-
              <lb/>
            ta ab omni parte æqualiter premitur, conatur cedere per
              <lb/>
            DE, cum vi qua premitur, id eſt, cum vi qua externe
              <lb/>
            premitur particula B, ſed æquali vi ponimus per ED pre-
              <lb/>
            mi particulam D; </s>
            <s xml:id="echoid-s8138" xml:space="preserve">non poterit ergo hæc moveri; </s>
            <s xml:id="echoid-s8139" xml:space="preserve">eadem
              <lb/>
            demonſtratio poterit applicari puncto F, ut alii puncto cui-
              <lb/>
            cunque ſuperficiei, ita ut nullibi gutta moveri poſ-
              <lb/>
            ſit.</s>
            <s xml:id="echoid-s8140" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8141" xml:space="preserve">Solidum fluido ſpecifice gravius, ad quamcunque alti.
              <lb/>
            </s>
            <s xml:id="echoid-s8142" xml:space="preserve">
              <note position="right" xlink:label="note-0297-05" xlink:href="note-0297-05a" xml:space="preserve">748.</note>
            tudinem fluido immerſum, deorſum pellitur preſſione, quæ
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            valet pondus columnæ quæ formatur ex ipſo corpore & </s>
            <s xml:id="echoid-s8143" xml:space="preserve">flui-
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            do ſuperincumbenti. </s>
            <s xml:id="echoid-s8144" xml:space="preserve">Pondus columoæ ſimilis, ſed quæ
              <lb/>
            tota ex fluido conſtat, eſt vis cum qua corpus a fluido ſur-
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            ſum premitur . </s>
            <s xml:id="echoid-s8145" xml:space="preserve">Cum vero ſolidum ponatur fluido
              <note symbol="*" position="right" xlink:label="note-0297-06" xlink:href="note-0297-06a" xml:space="preserve">742. 711.</note>
            fice gravius, vis hæc minor eſt illâ, & </s>
            <s xml:id="echoid-s8146" xml:space="preserve">ab eadem ſuperatur,
              <lb/>
            & </s>
            <s xml:id="echoid-s8147" xml:space="preserve">corpus deſcendit.</s>
            <s xml:id="echoid-s8148" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8149" xml:space="preserve">Simili ratiocinio, ſolidum fluido ſpecifice levius immer ſum,
              <lb/>
              <note position="right" xlink:label="note-0297-07" xlink:href="note-0297-07a" xml:space="preserve">749.</note>
            ad ſupremam fluidi ſuperficiem adſcendere debere, proba-
              <lb/>
            tur.</s>
            <s xml:id="echoid-s8150" xml:space="preserve"/>
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