Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

Table of figures

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              <s id="s.001041">
                <pb pagenum="201" xlink:href="010/01/209.jpg"/>
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              ritur ad ſeparandam, & diuellendam baſim AB à fun­
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              do putei DE horizonti æquidiſtante. </s>
              <s id="s.001042">dum igitur ba­
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              ſis AB immediatè, & exquiſitè tangit fundum putei
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              DE, vt ſibi mutuò congruant, exoſculenturque, re­
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              pleatur vniuerſum vas FE prædicto fluido M quouſ­
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              que ſuprema fluidi libella ad ſummitatem C cylindri
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              AC demerſi pertingat. </s>
              <s id="s.001043">Et quia hìc iam exiſtunt, &
                <lb/>
              operantur duæ vires contrariæ, vna quidem H im­
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              pellit ſursùm, eſtque virtus eius leuitatis, alia verò
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              G, quæ huic reſiſtit, & vim deorsùm tendendo facit,
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              eſtque energia contactus ſuperficierum AB & DE,
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              ſeù repugnantia ad vacuum admittendum qua con­
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              trario niſui aſcenſus cylindri AC reſiſtit: Eſtque
                <expan abbr="cõ-traria">con­
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                traria</expan>
              vis H leuitatis, prædicti cylindri maior virtu­
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              te G tenacitatis, vel repugnantiæ ad vacuum, quæ
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              impetum contrarium deorsùm facit; igitur maior vis
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              leuitatis H neceſſariò ſuperare debet vim minorem
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              G, & proinde diſtrahet diuelletque cylindrum AC à
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              fundo putei DE, atque poſt ſeparationem idipſum̨
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              ſursùm ad ſuperficiem fluidi M impellet, transferet­
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              que; ſed hoc eſt falſum, & contra ſenſus
                <expan abbr="euidentiã">euidentiam</expan>
              ,
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              proptereà quòd numquam contingit vt baſis colum­
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              næ AB ſeparetur à
                <expan abbr="cõtactu">contactu</expan>
              fundi putei DE, licèt ſup­
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              ponatur vim leuitatis quocumque exceſſu vim con­
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              tactus ſuperare, igitur verum non eſt cylindrum AC
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              ſursùm impelli ab intrinſeca, & poſitiua facultatę
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              leuitatis eius, quod fuerat demonſtrandum. </s>
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