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

Table of figures

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        <body>
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            <p type="main">
              <s id="s.002541">
                <pb pagenum="482" xlink:href="010/01/490.jpg"/>
                <arrow.to.target n="marg662"/>
                <lb/>
              particularum fluidi non incidant in aſperitates ſuper­
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              ficiei vaſis, vel fluidi quieſcentis, vnde ſubſequitur
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              confricatio, & repercuſſio partium fluidi per totam̨
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              longitudinem canalis AD; & hac de cauſa impetus
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              fluentis aquæ tranfuerſali motu retardatur extenſiuè,
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              & intenſiuè; & quoad extenſionem pertinet, patet
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              quòd quam proportionem habet ſuperficies interna
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              vaſis AD ad ſuperficiem PS, eamdem habebit impe­
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              dimentum retardans impetum fluidi AND ad impe­
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              dimentum impetus fluidi P 3 S, & habet AD ad PS
                <lb/>
                <expan abbr="duplicatã">duplicatam</expan>
              proportionem eius, quam habet impetus
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              aquæ fluentis AND ad impetum fluentis aquæ P 3 S.
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              verùm quoad intenſionem, patet quòd machinulæ
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              ambientes particulas fluidorum magis flectuntur, &
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              vehementiùs diſtrahuntur, quando maiori vi intra ali­
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              as denſas, vel fluidas particulas agitantur, & propte­
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              rea multò magis eorum impetus retardatur; Hinc fit
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              vt maior naturalis vis motiua libræ GH & ideò impe­
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              tus aquæ fluentis AND magis, & intenſiuè retarde­
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              tur quàm naturalis languidior impetus aquæ P 3 S, &
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              propterea oleum EF nedùm celeriùs non aſcendet,
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              quàm oleum KY, ſed præterea neceſſe eſt (vt docet ex­
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              perientia) vt aliquantiſper tardius, quàm illud eleue­
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              tur. </s>
              <s id="s.002542">idem de mercurij deſcenſu concludetur. </s>
              <s id="s.002543">His de­
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              claratis deuenio ad Propoſitionem principalem. </s>
            </p>
            <p type="margin">
              <s id="s.002544">
                <margin.target id="marg660"/>
              Cap. 11. gra­
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              uia in fluido
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              velocitati­
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              bus inæqua­
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              libus ferri
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              debere.</s>
            </p>
            <p type="margin">
              <s id="s.002545">
                <margin.target id="marg661"/>
              Prop. 233.</s>
            </p>
            <p type="margin">
              <s id="s.002546">
                <margin.target id="marg662"/>
              Cap. 11. gra­
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              uia in fluido
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              velocitati­
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              bus inæqua­
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              libus ferri
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              debere.</s>
            </p>
            <p type="main">
              <s id="s.002547">
                <emph type="center"/>
              PROP. CCXXXV.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.002548">
                <emph type="center"/>
                <emph type="italics"/>
              Si fuerint duo cylindri homogenei, æquè alti, quorum baſes
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              inæquales, cylinder ſtrictior aliquantùm celerius
                <expan abbr="aſcẽdet">aſcendet</expan>
              ,
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              vel deſcendet, quàm latior.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
          </chap>
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