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

Table of figures

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[181. Figure]
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[183. Figure]
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              <s id="s.001071">
                <pb pagenum="206" xlink:href="010/01/214.jpg"/>
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                <lb/>
              rauimus ligna, ampullas vitreas |, & veſicas aere ple­
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              nas per aquam aſcendentes, demonſtrauimuſque eas
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              non vi leuitatis, ſed ab extruſione medij fluidi ſursùm
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              impelli, ſic pariter ſi loco ligni, aut veſicę ponatur aer
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              in
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              hydrargyri, vel aquæ, olei, vel ſpiritus vini
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                <expan abbr="">non</expan>
              ſecùs, ac priùs
                <expan abbr="factũ">factum</expan>
              eſt,
                <expan abbr="oſtẽdemus">oſtendemus</expan>
              aerem non
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                te</expan>
              ſua aſcendere à vi leuitatis tranſlatum, ſed à preſ­
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              ſione grauioris medij fluidi violenter ſursùm impel­
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              lentis. </s>
              <s id="s.001072">licèt ergo negotium omninò confectum eſſę
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              videatur, vtile tamen erit idipſum confirmare ex æ­
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              quilibrio aeris cum cæteris fluidis. </s>
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              <s id="s.001073">
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              4. de Cælo
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              cap. 4.</s>
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              Cap. 5. de ae­
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              ris grauitate
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              æquilibrio,
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              ſtructura, &
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              vi elaterią
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              eius.</s>
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                <emph type="center"/>
              PROP. C.
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            <p type="main">
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              Ex ſuſpenſione mercurij in inſtrumento Torricelliano
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              ſuadetur aerem, vt grauem, æquilibrium
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              efficere cum mercurio.
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                <emph.end type="center"/>
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              <s id="s.001077">ET hac occaſione conſiderabimus pulcherrimum
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              profectò experimentum eorum, quæ hoc ſeculo
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              adinuenta ſunt, hydrargyri nempè eleuatio in fiſtula,
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              quam primus
                <expan abbr="omniũ">omnium</expan>
              animaduertit doctiſſimus Tor­
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              ricellius, eſtque experimentum huiuſmodi: Sit fiſtu­
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              la vitrea ABC perforata tantummodò in eius extre­
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              mitate C, in A verò clauſa, hæc verò hydrargyro
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              repleta vſque ad ſummitatem C pulpa indicis ſtrictè
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              claudatur, inuertaturque contrario ſitu, vt nimirùm
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              os eius C inferiùs reſpiciat; ſitque poſtea præparata
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              ſcutella DHE pariter hydrargyro plena demerga­
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              tur infimum orificium C fiſtulæ vnà
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              digito occlu-</s>
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