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

Table of figures

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              <s id="s.002728">
                <pb pagenum="513" xlink:href="010/01/521.jpg"/>
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              vt nimirùm eius baſis FG perducatur ad
                <expan abbr="sũmitatẽ">summitatem</expan>
              fi­
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              ſtulæ D, ita tamen vt perfectè aſſarium FG contingat
                <lb/>
              internam fiſtulæ ſuperficiem, vt ne rimula quidem re­
                <lb/>
              maneat per quam aeri ſupremo ingreſſus pateat; tunc
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              in ſpatio FD, neque aer, neque aliud corpus remane­
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              ret, dum contrapoſita fiſtula AB eſt plena aquæ, & hæc
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              procùl dubio ſua naturali grauitate impellet ſursùm
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              aquam ab F vſque ad D, nulla alia de cauſa, niſi quia
                <lb/>
              in bilance BC maius pondus aquæ AB impellere ſur­
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              sùm debet contrapoſitum minus pondus. </s>
              <s id="s.002729">modò iņ
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              hac operatione nonne ſtultè ratiocinaretur is, qui di­
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              ceret aquam FC aſcendere ſursùm ad occupandum̨
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              ſpatium FD contra inclinationem naturalem ſuę gra­
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              uitatis, ad hoc vt repleat prædictum ſpatium ne inane
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              admittatur in natura? </s>
              <s id="s.002730">& ratio eſt quia non poteſt in
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              dubium reuocari cauſa phyſica, & realis, quæ author
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              eſt huius operationis, nempè maius pondus contra­
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              poſitæ aquæ AB, quæ in ſiphone, & bilance neceſſita­
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              te mechanica apta nata eſt impellere ſursùm aquam
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              FC vſque ad D. </s>
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            <p type="margin">
              <s id="s.002731">
                <margin.target id="marg719"/>
              Cor. pro. </s>
              <s id="s.002732">10.</s>
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            <p type="margin">
              <s id="s.002733">
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              Cap. 12. dę
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              vacui neceſ­
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              ſitate.</s>
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              PROP. CCLII.
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            <p type="main">
              <s id="s.002735">
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              Si in syringa intra puteum demerſa embolum ab eius fundo
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              ſursùm retrahatur, aqua ſubiecta aſcendet, non quidem
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              ob metum vacui, ſed necesſitate mechanica à pondere co­
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              lumnæ aquæ collateralis impulſa.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
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              <s id="s.002736">SI poſtea non vſurpetur ſipho ſolidus ABCD, ſed
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                <expan abbr="tantũmodò">tantummodò</expan>
              ænea syringa EDC, & hæc intra pu­
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              teum RSTV perpendicularitèr ad horizontem orę
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              deorsùm vergente immittatur, quouſque infimum̨ </s>
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