Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670
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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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              <s id="s.001275">Hiſce omnibus difficultatibus perpenſis plures
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              modi
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              aeris
                <expan abbr="grauitatẽ">grauitatem</expan>
              in Academia Experi­
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              mentali Medicea excogitati
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              ab illis doctis vi­
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              ris, hìc tamen referam aliquos ex multis à me ibidem
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              propoſitis. </s>
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              PROP. CXVIII.
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              Nouum artificium ad explorandam aeris grauitatem
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              exponitur.
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              <s id="s.001278">PRimò ſumatur fiſtula vitrea
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              ABCF inflexa propè eius
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              extremum C, in ſummitate verò
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              annexam habeat
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              ampul­
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              lam AB diametro 4. digitorum̨,
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              habeatque duo orificia aperta in
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              M & F, longitudo verò eius BD
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              maior ſit ſeſqui cubito. </s>
              <s id="s.001279">Vas
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                dictum</expan>
              hydrargyro impleatur per
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              orificium M, obturato prius oſtio
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              infimo F, & poſteà denuò veſica
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              ſuilla clauſo ſupremo orificio M
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              ibidem alligari debet æneum fi­
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              lum
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              MSN, & aper­
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              to infimo oſtio F, facto vacuo mo
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              re ſolito, deſcendet mercurij ſu­
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              perficies vſque ad L, poſt quam̨
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              ſcilicèt maior pars eius fluxerit ab infimo orificio F,
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              remanſerit que ſpatium ABL exinanitum, & tunc de-</s>
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