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

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              innixus ſtringitur ab ijſdem potentijs G, & P in B du­
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              plici energia conſtringitur, contunditurque quam ſi
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              ab ijſdem duabus potentijs G, & P ſubdiuiſis
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                geretur</expan>
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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 elateria
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              eius.</s>
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              PROP. CXII.
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            <p type="main">
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              In Torricelliana fiſtula mercurio extante, clauſo oriſicio
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              ſcutellæ, & aperta ſummitate fiſtulæ, aer in ſcu­
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              tella interceptus inter mercurium, &
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              operculum à vi duplò validiori
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              comprimitur, quàm illo
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              aperto, & hoc clauſo.
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              <s id="s.001213">IN fiſtula Torricelliana ACG aper­
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              ta in G, & clauſa in A, facto vacuo,
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              more ſolito, remanente mercurio BF
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              eleuato
                <expan abbr="ſupralibellã">ſupra libellam</expan>
              BD; patet ex ip­
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              ſiuſmet aduerſarij hypotheſi, quòd
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              aer in ſcutella, ſeu ampulla DG con­
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              tentus ſtringitur, comprimiturque à
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              duabus potentijs contrarijs inter ſę
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              æqualibus (eò quod æquilibrantur)
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              nempè à pondere mercurij
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              BF,
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              & à pondere columnæ aereæ GS. </s>
              <s id="s.001214">Si
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              poſtea appoſito operculo exactè clau­
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              datur orificium G, & aperiatur
                <expan abbr="orificiũ">orificium</expan>
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              in ſummitate fiſtulæ A aer interceptus
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              inter operculum G, & mercurium D
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              ſtringitur comprimiturque à mercurio BF, & à colum-</s>
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