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

Table of figures

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            <p type="main">
              <s id="s.002728">
                <pb pagenum="513" xlink:href="010/01/521.jpg"/>
                <arrow.to.target n="marg720"/>
                <lb/>
              vt nimirùm eius baſis FG perducatur ad
                <expan abbr="sũmitatẽ">summitatem</expan>
              fi­
                <lb/>
              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
                <lb/>
              in ſpatio FD, neque aer, neque aliud corpus remane­
                <lb/>
              ret, dum contrapoſita fiſtula AB eſt plena aquæ, & hæc
                <lb/>
              procùl dubio ſua naturali grauitate impellet ſursùm
                <lb/>
              aquam ab F vſque ad D, nulla alia de cauſa, niſi quia
                <lb/>
              in bilance BC maius pondus aquæ AB impellere ſur­
                <lb/>
              sùm debet contrapoſitum minus pondus. </s>
              <s id="s.002729">modò iņ
                <lb/>
              hac operatione nonne ſtultè ratiocinaretur is, qui di­
                <lb/>
              ceret aquam FC aſcendere ſursùm ad occupandum̨
                <lb/>
              ſpatium FD contra inclinationem naturalem ſuę gra­
                <lb/>
              uitatis, ad hoc vt repleat prædictum ſpatium ne inane
                <lb/>
              admittatur in natura? </s>
              <s id="s.002730">& ratio eſt quia non poteſt in
                <lb/>
              dubium reuocari cauſa phyſica, & realis, quæ author
                <lb/>
              eſt huius operationis, nempè maius pondus contra­
                <lb/>
              poſitæ aquæ AB, quæ in ſiphone, & bilance neceſſita­
                <lb/>
              te mechanica apta nata eſt impellere ſursùm aquam
                <lb/>
              FC vſque ad D. </s>
            </p>
            <p type="margin">
              <s id="s.002731">
                <margin.target id="marg719"/>
              Cor. pro. </s>
              <s id="s.002732">10.</s>
            </p>
            <p type="margin">
              <s id="s.002733">
                <margin.target id="marg720"/>
              Cap. 12. dę
                <lb/>
              vacui neceſ­
                <lb/>
              ſitate.</s>
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            <p type="main">
              <s id="s.002734">
                <emph type="center"/>
              PROP. CCLII.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.002735">
                <emph type="center"/>
                <emph type="italics"/>
              Si in syringa intra puteum demerſa embolum ab eius fundo
                <lb/>
              ſursùm retrahatur, aqua ſubiecta aſcendet, non quidem
                <lb/>
              ob metum vacui, ſed necesſitate mechanica à pondere co­
                <lb/>
              lumnæ aquæ collateralis impulſa.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.002736">SI poſtea non vſurpetur ſipho ſolidus ABCD, ſed
                <lb/>
                <expan abbr="tantũmodò">tantummodò</expan>
              ænea syringa EDC, & hæc intra pu­
                <lb/>
              teum RSTV perpendicularitèr ad horizontem orę
                <lb/>
              deorsùm vergente immittatur, quouſque infimum̨ </s>
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