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

Table of figures

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              <s id="s.001092">
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              men reuocabo difficultates contra ratiocinium Torri­
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              cellianum, & noſtrum à doctiſſimo viro allatas
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              ait.
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              Dicebatur ſegmentum mercurij IC ſustineri à cylindro aeris
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              eiuſdem baſis, itaut perfectum ſit vtrinque æquilibrium.
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              <s id="s.001093">Contra hanc ſententiam nonnulla militant ſi appendatur fi­
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              stula BD poſtquàm ſubducto digito deſcendit mercurius in
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              IC ſtatera fideli adhibita, & ſignetur pon­
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              deris ratio, ac deindè citrà mercurij deſcen­
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              ſum eadem fiſtula cum æquali quantitate
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              mercurij appendatur, eadem ratio ponderis
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              inuenietur paulò maior, æqualem quantita­
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              tem mercurij intelligo
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              IC;
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              Et pau­
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              lò infra ſubſequitur.
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              Si mercurius IC
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              ſuſtinetur à cylindro exterioris aeris, igitur
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              cum illo perfectum æquilibrium facit, igitur
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              cum alio æquali pondere ad libram appenſo
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              aliud æquilibrium facere non potest. </s>
              <s id="s.001094">Supponemus enim mer­
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              curium IC eße trium librarum, æquilibrium facit cum cy­
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              lindro aeris etiam trium librarum. </s>
              <s id="s.001095">Si autem aliud pondus
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              trium librarum in alter a lance appendatur
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              hoc mercuri­
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              us æquilibrium facere nequit, alioquin ſex Libris mercurius
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              æquilibraret, quod legibus staticæ repugnat.
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              <s id="s.001096">
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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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            <p type="margin">
              <s id="s.001097">
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              Defficulta­
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              tes contra
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              noſtram do­
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              ctrinam.</s>
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              PROP. CII.
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            <p type="main">
              <s id="s.001099">
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              Euidentiſsimo exemplo in aqua
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              quod licèt mercu­
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              rius in fiſtula ab æquipondio aquæ ſuſtineatur, nihilo­
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              minùs vis eleuans fiſtulam ſustinet præterea
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              aquæ incumbentis pondus æquale
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              mercurio.
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