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

Table of contents

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[241.] Experimentum. 1
[242.] Experimentum 2.
[243.] Experimentum 3.
[244.] SCHOLIUM 1. Demonſtrationes n. 623. 625. 626. 627.
[245.] SCHOLIUM 2. Inveſtigatio motus memorati in n. 633.
[246.] SCHOLIUM 3. Demonſtratio n. 637.
[247.] CAPUT XXVIII. De Motu Centri gravitatis.
[248.] Definitio.
[249.] SCHOLIUM 1. Demonſtratio n. 660.
[250.] SCHOLIUM 2. Demonſtrationes n. 658. ut & 648.
[251.] SCHOLIUM 3.
[252.] CAPUT XXIX. De Legibus Elaſticitatis.
[253.] Definitio.
[254.] Machina Qua Experimenta de Elaſticitate inſtituuntur.
[255.] Experimentum. i.
[256.] Experimentum 2.
[257.] Experimentum 3.
[258.] Experimentum 4.
[259.] Experimentum 5.
[260.] Experimentum 6.
[261.] SCHOLIUM.
[262.] FINIS LIBRI PRIMI.
[263.] PHYSICES ELEMENTA MATHEMATICA EXPERIMENTIS CONFIRMATA. LIBER II. Pars I. de Gravitate, & Preſſione Fluidorum. CAPUT I. De Gravitate partium Fluidorum, & illius Effectu in ipſis Fluidis.
[264.] Bilanx Hydrostatica.
[265.] Experimentum 1.
[266.] Experimentum 2.
[267.] Experimentum 3.
[268.] Experimentum 4.
[269.] Experimentum. 5.
[270.] Experimentum 6.
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            <s xml:id="echoid-s6277" xml:space="preserve">
              <pb o="159" file="0227" n="246" rhead="MATHEMATICA. LIB. I. CAP. XXIV."/>
            tus communicationes non datur, unde etiam corpora V & </s>
            <s xml:id="echoid-s6278" xml:space="preserve">
              <lb/>
            T æque velociter moventur & </s>
            <s xml:id="echoid-s6279" xml:space="preserve">non ſeparantur.</s>
            <s xml:id="echoid-s6280" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6281" xml:space="preserve">A lio experimento conſtat, ita ſubitam eſſe elaſterii actio-
              <lb/>
            nem ut vix concipiatur.</s>
            <s xml:id="echoid-s6282" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div900" type="section" level="1" n="231">
          <head xml:id="echoid-head323" xml:space="preserve">
            <emph style="sc">Experimentum</emph>
          12.</head>
          <p>
            <s xml:id="echoid-s6283" xml:space="preserve">Globus eburneus cavus, diametri circiter@ duorum pol-
              <lb/>
              <note position="right" xlink:label="note-0227-01" xlink:href="note-0227-01a" xml:space="preserve">586.</note>
            licum, ex duobus conſtat hemiſphæriis A & </s>
            <s xml:id="echoid-s6284" xml:space="preserve">B, quæ cochleâ
              <lb/>
              <note position="right" xlink:label="note-0227-02" xlink:href="note-0227-02a" xml:space="preserve">
                <emph style="sc">TA. XXII</emph>
              .
                <lb/>
              fig. 10.</note>
            quàm arctiſſimè inter ſe conjungi poſſunt.</s>
            <s xml:id="echoid-s6285" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6286" xml:space="preserve">Hemiſphærium B dimittitur ita, ab altitudine quacunque,
              <lb/>
            ex. </s>
            <s xml:id="echoid-s6287" xml:space="preserve">gr. </s>
            <s xml:id="echoid-s6288" xml:space="preserve">octodecim pollicum, ut plano marmoreo cœru-
              <lb/>
            leo, paululum madefacto, impingat; </s>
            <s xml:id="echoid-s6289" xml:space="preserve">& </s>
            <s xml:id="echoid-s6290" xml:space="preserve">quidem ut pun-
              <lb/>
            ctum medium ſuperficiei in planum incurrat. </s>
            <s xml:id="echoid-s6291" xml:space="preserve">Hoc haud
              <lb/>
            difficulter obtineri poteſt, ſi in eo loco majorem ha-
              <lb/>
            beat craſſitiem hemiſphærium quâm extrema verſus. </s>
            <s xml:id="echoid-s6292" xml:space="preserve">Men-
              <lb/>
            furetur macula quam in marmore corpus impactu impri-
              <lb/>
            mit.</s>
            <s xml:id="echoid-s6293" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6294" xml:space="preserve">Conjungatur hemiſphærium A, & </s>
            <s xml:id="echoid-s6295" xml:space="preserve">dimittatur ab eadem
              <lb/>
            altitudine globus ita, ut idem punctum ſuperficiei hemi-
              <lb/>
            ſphærii B in planum marmoreum incurrat, quod facile fiet ſi
              <lb/>
            hemiſphærium A alio levius fuerit: </s>
            <s xml:id="echoid-s6296" xml:space="preserve">Macula priori quam ex-
              <lb/>
            actiſſime æqualis erit, & </s>
            <s xml:id="echoid-s6297" xml:space="preserve">globus multo minus reſiliet.</s>
            <s xml:id="echoid-s6298" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6299" xml:space="preserve">Tandem in globi cavitatem inſeratur plumbi fruſtum P,
              <lb/>
            ejuſdem ponderis cum ipſo globo, ibique firmetur; </s>
            <s xml:id="echoid-s6300" xml:space="preserve">dimiſſo
              <lb/>
            eodem modo globo, & </s>
            <s xml:id="echoid-s6301" xml:space="preserve">in hoc tertio caſu macula eadem
              <lb/>
            erit, & </s>
            <s xml:id="echoid-s6302" xml:space="preserve">globus vix reſiliet.</s>
            <s xml:id="echoid-s6303" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6304" xml:space="preserve">Dimiſſo autem ab eadem altitudine globo ſolido ex ebo-
              <lb/>
            re, globo memorato æquali, macula major eſt, & </s>
            <s xml:id="echoid-s6305" xml:space="preserve">fere ad il-
              <lb/>
            lam à qua cecidit altitudinem globus redit.</s>
            <s xml:id="echoid-s6306" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6307" xml:space="preserve">In hoc experimento videmus, partes ictas hemiſphærii
              <lb/>
            B ad figuram rediiſſe, antequam huic hemiſphærio actio
              <lb/>
            hemiſphærii A, aut plumbi inſerti, communicari potuerit,
              <lb/>
            licet ſatis arcte hæc corpora cohæreant.</s>
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