Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

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          <pb o="481" file="0495" n="495" rhead="CORPORUM FIRMORUM."/>
          <p>
            <s xml:id="echoid-s11197" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s11198" xml:space="preserve">XIX. </s>
            <s xml:id="echoid-s11199" xml:space="preserve">fig 6. </s>
            <s xml:id="echoid-s11200" xml:space="preserve">Eſt A B Statera Romana ferrea, robuſta, cu-
              <lb/>
            jus ope corpus admodum grave, nempe librarum 1500 & </s>
            <s xml:id="echoid-s11201" xml:space="preserve">ultra, com-
              <lb/>
            mode ponderari poteſt, pondere C libere mobili ad varias diſtan-
              <lb/>
            tias applicato: </s>
            <s xml:id="echoid-s11202" xml:space="preserve">hæc ſuſpenditur ex unco craſſo D, excepto a Co-
              <lb/>
            chlea firma ferrea D E, quæ attollit demittitque ſtateram ad varias
              <lb/>
            altitudines, quod valde quam neceſſarium eſt, quia corpora quo-
              <lb/>
            rum Cohærentia examinabitur, non ſemper accurate æque longa
              <lb/>
            capi poſſunt: </s>
            <s xml:id="echoid-s11203" xml:space="preserve">ex capite ſtateræ A uncus firmus denſusque F pendet,
              <lb/>
            cui annectuntur corpora, quorum unum G hic conſpicitur, ut
              <lb/>
            clarius intelligeretur ea applicandi methodus: </s>
            <s xml:id="echoid-s11204" xml:space="preserve">ſunt K K duo ſtyli
              <lb/>
            lignei 6 pedes alti, e ligno quercico, quorum quodlibet latus 5
              <lb/>
            pollices craſſum eſt, qui ſuperius conjunguntur ope trabis transver-
              <lb/>
            ſæ, per quam cochlea D E tranſit: </s>
            <s xml:id="echoid-s11205" xml:space="preserve">Inſiſtunt ambo trabi firmæ H L,
              <lb/>
            atque ut immobiles ſtarent, lateraliter applicata ſunt duo ferra-
              <lb/>
            menta O O. </s>
            <s xml:id="echoid-s11206" xml:space="preserve">ad partem anteriorem prominet uncus ferreus H, in-
              <lb/>
            fra trabem clavo retentus, ne extrahi poſſet, cum omnem vim cor-
              <lb/>
            porum examinandorum ſuſtinere debeat: </s>
            <s xml:id="echoid-s11207" xml:space="preserve">ad partem trabis L poſte-
              <lb/>
            riorem bini alii lignei ſtyli erecti ſunt P P, variis inciſuris donati
              <lb/>
            oblique deorſum inſculptis, quibus excipitur funis S S, utroque ex-
              <lb/>
            tremo donatus craſſiori nodo, qui per inciſuras transcurrere nequit
              <lb/>
            introrſum; </s>
            <s xml:id="echoid-s11208" xml:space="preserve">hic poſterior apparatus factus eſt, ut cauda ſtateræ B
              <lb/>
            non multum moveretur, neque contorſio totius ſtateræ, & </s>
            <s xml:id="echoid-s11209" xml:space="preserve">proin-
              <lb/>
            de corporum examinandorum G fieret: </s>
            <s xml:id="echoid-s11210" xml:space="preserve">præterea, quando rumpitur
              <lb/>
            corpus G, pondus C ſimul cum cauda ſtateræ cadit, magno cum
              <lb/>
            fragore & </s>
            <s xml:id="echoid-s11211" xml:space="preserve">periculo obſervatoris, cujus pedes facile læderentur,
              <lb/>
            idcirco funis S S in crenis jacet, qui ſtateram excipit, deciduam
              <lb/>
            modo ex tam parva altitudine ac volumus ob varias crenas; </s>
            <s xml:id="echoid-s11212" xml:space="preserve">unde nec
              <lb/>
            pondus C amplius cadit, & </s>
            <s xml:id="echoid-s11213" xml:space="preserve">â detrimento ſervetur ſtatera ob mollitiem
              <lb/>
            funis S S eam excipientis; </s>
            <s xml:id="echoid-s11214" xml:space="preserve">Trabs H L tribus rotis inſiſtit hic non
              <lb/>
            depictis, quarum beneficio in locum quemlibet facile apportatur,
              <lb/>
            nam graviſſima eſt tota machina, & </s>
            <s xml:id="echoid-s11215" xml:space="preserve">minus mobilis foret, nec le-
              <lb/>
            vior parari potuit propter vires maximas corporum cohærentium,
              <lb/>
            quæ explorandæ erant, quippe ſæpius 1000 librar. </s>
            <s xml:id="echoid-s11216" xml:space="preserve">vim exercet
              <lb/>
            cohærentia corporum tenuium abſoluta, ſæpe vim libr. </s>
            <s xml:id="echoid-s11217" xml:space="preserve">1500 & </s>
            <s xml:id="echoid-s11218" xml:space="preserve">
              <lb/>
            majorem, uti ex Experimentis infra deſcriptis apparebit.</s>
            <s xml:id="echoid-s11219" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11220" xml:space="preserve">Breviter quoque depinxiſſe formam corporum exploratorum.</s>
            <s xml:id="echoid-s11221" xml:space="preserve"/>
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